Impact of COVID‐19 and other infectious conditions requiring isolation on the provision of and adaptations to fundamental nursing care in hospital in terms of overall patient experience, care quality, functional ability, and treatment outcomes: systematic review

Abstract Aim This systematic review identifies, appraises and synthesizes the evidence on the provision of fundamental nursing care to hospitalized patients with a highly infectious virus and the effectiveness of adaptations to overcome barriers to care. Design Systematic review. Data Sources In July 2020, we searched Medline, PsycINFO (OvidSP), CINAHL (EBSCOhost), BNI (ProQuest), WHO COVID‐19 Database (https://search.bvsalud.org/) MedRxiv (https://www.medrxiv.org/), bioRxiv (https://www.biorxiv.org/) and also Google Scholar, TRIP database and NICE Evidence, forwards citation searching and reference checking of included papers, from 2016 onwards. Review Methods We included quantitative and qualitative research reporting (i) the views, perceptions and experiences of patients who have received fundamental nursing care whilst in hospital with COVID‐19, MERS, SARS, H1N1 or EVD or (ii) the views, perceptions and experiences of professional nurses and non‐professionally registered care workers who have provided that care. We included review articles, commentaries, protocols and guidance documents. One reviewer performed data extraction and quality appraisal and was checked by another person. Results Of 3086 references, we included 64 articles; 19 empirical research and 45 review articles, commentaries, protocols and guidance documents spanning five pandemics. Four main themes (and 11 sub‐themes) were identified. Barriers to delivering fundamental care were wearing personal protective equipment, adequate staffing, infection control procedures and emotional challenges of care. These barriers were addressed by multiple adaptations to communication, organization of care, staff support and leadership. Conclusion To prepare for continuation of the COVID‐19 pandemic and future pandemics, evaluative studies of adaptations to fundamental healthcare delivery must be prioritized to enable evidence‐based care to be provided in future. Impact Our review identifies the barriers nurses experience in providing fundamental care during a pandemic, highlights potential adaptations that address barriers and ensure positive healthcare experiences and draws attention to the need for evaluative research on fundamental care practices during pandemics.

Health and Social Care. AMR and MS are National Institute for Health Research (NIHR) Senior Nurse and Midwife Research Leaders. The views expressed in this article are those of the author(s) and not necessarily those of the NIHR, or the Department of Health and Social Care. AM Russell is a National Institute for Health Research (NIHR) 70@70 Senior Research Fellow. The views expressed in this article are those of the author(s) and not necessarily those of the NIHR, or the Department of Health and Social Care.
perceptions and experiences of professional nurses and non-professionally registered care workers who have provided that care. We included review articles, commentaries, protocols and guidance documents. One reviewer performed data extraction and quality appraisal and was checked by another person.

Results:
Of 3086 references, we included 64 articles; 19 empirical research and 45 review articles, commentaries, protocols and guidance documents spanning five pandemics. Four main themes (and 11 sub-themes) were identified. Barriers to delivering fundamental care were wearing personal protective equipment, adequate staffing, infection control procedures and emotional challenges of care. These barriers were addressed by multiple adaptations to communication, organization of care, staff support and leadership.

Conclusion:
To prepare for continuation of the COVID-19 pandemic and future pandemics, evaluative studies of adaptations to fundamental healthcare delivery must be prioritized to enable evidence-based care to be provided in future. Impact: Our review identifies the barriers nurses experience in providing fundamental care during a pandemic, highlights potential adaptations that address barriers and ensure positive healthcare experiences and draws attention to the need for evaluative research on fundamental care practices during pandemics.

K E Y W O R D S
adaptation, barrier, experience, fundamental care, nurses, nursing, support, systematic review drinking, respecting choice, elimination, mobility, personal cleansing and dressing, expressing sexuality, temperature control, rest and sleep (Kitson et al., 2010). Activities by nurses to address these areas can be categorized as physical (physical hands on care), relational (establishing a patient/nurse relationship) and psychosocial (wellbeing and mental health) (Feo et al., 2018).
Despite considerable theoretical work (Feo et al., 2018;Kitson et al., 2010), the empirical evidence for specific fundamental care nursing interventions is largely absent. In a review of 149 empirical studies of fundamental nutrition, toileting, mobility and hygiene interventions, all but 13 trials were of low quality and at serious risk of bias. Only one multi-component intervention which could be used in general nursing practice found effects in favour of the intervention on mobility and incontinence frequency (Richards et al., 2018).
This review was not able to provide guidance on which nursing techniques were most effective for delivering fundamental nursing care in these areas.
There have been no reviews specifically for fundamental nursing care in pandemic situations, either concerning the impact of pandemics on nursing or the effectiveness of specific procedures to deliver fundamental care.
Therefore, as part of the intervention development phase (Medical Research Council, 2008) of a trial testing a specific fundamental nursing care protocol for COVID-19, we undertook a systematic review of the impact of COVID-19, and other infectious conditions requiring isolation, on the provision of fundamental nursing care and the techniques required by nurses caring for these patients.

| Aims
To answer the following research questions: To answer these questions, we will identify, appraise and synthesize the evidence on: (i) the impact of COVID-19 and other pandemic infectious conditions requiring isolation on the provision of fundamental nursing care to patients in hospital; (ii) the effectiveness of adaptations to overcome these barriers in terms of overall patient experience, care quality, functional ability and treatment outcomes.
We will also present a summary of the available protocols, guidance and research related to specific aspects of fundamental care during a pandemic.

| Design
We undertook this systematic review according to best practice guidance (Higgins et al., 2020) and report it according to PRISMA reporting standards (Moher et al., 2009). We registered the protocol with PROSPERO (CRD42020200914).
The patient advisory group for the wider project which included patients with experience of hospitalization due to COVID-19 was involved in informing all stages of the research and in particular development of the protocol and search strategy as well as the interpretation of the review's findings.

| Search methods
A set of key papers was curated from the relevant included studies in two recently published relevant systematic reviews (Pentecost et al., 2020;Richards et al., 2018) and used to develop the search strategy.
We used both free text and, where relevant and available, controlled vocabulary terms (e.g. MeSH) and the strategy was peer reviewed and edited by our information specialist (AB) (Example search strategy for Medline in Appendix A).
We searched the TRIP database and NICE Evidence for guidance and protocols using the terms 'pandemic and nursing' or 'covid and nursing'. All identified guidelines were full text searched using the term 'nurse' to determine relevancy. In response to stakeholder feedback, we undertook additional searches for guidelines in the TRIP and NICE databases using the terms 'covid and bathing', 'covid and nutrition' and 'covid and fundamental care'.
In response to stakeholder feedback, we undertook forwards citation searching of a relevant paper (Groven et al., 2017) identified in the database searches and carried out further targeted searching for studies on wipes and washing on 24th August 2020 in the WHO COVID-19 database, Medline (OvidSP), CINAHL (EBSCOhost) and Nexus.
We carried out forwards citation searching, using Web of Science, as well as reference checking (backwards citation searching) of all included studies. You can observe where each of the included studies were identified in the search summary table (Bethel et al., 2021) in Appendix B.

| Eligibility criteria
We included any quantitative or qualitative study reporting (i) the views, perceptions and experiences of patients who have received fundamental nursing care whilst in hospital with COVID-19, MERS, SARS, H1N1 or Ebola Virus Disease (EVD) and (ii) the views, perceptions and experiences of professional nurses and nonprofessionally registered care workers who have provided that care. We were interested in the impact of COVID-19, MERS, SARS, H1N1 and EVD on the provision of fundamental nursing care and adaptations to fundamental nursing care procedures as a result of the infection. In addition to reports of empirical studies, we also included review articles, commentaries, study reports, case studies, protocols and guidance documents related to COVID-19.
We did this to ensure that COVID-19 specific information could be incorporated.
We excluded studies where patients were invasively ventilated, as this review was part of the development process for an intervention that does not include this patient group. We also excluded studies that reported experiences of providing and receiving medical care, studies where fundamental nursing care was provided by other registered, health care professionals and studies that were conducted outside of the hospital setting.
Similar to Kitson's model of fundamental nursing care (Kitson et al., 2010), we defined fundamental nursing care as in Table 1.
We did not impose any date or geographical restrictions but only studies published in the English language were included.

| Study selection
As an initial calibration exercise, all reviewers (JTC/RA/RW) applied inclusion and exclusion criteria to the same sample (n = 100) of search results. After discussion in a group meeting, minor revisions were made to the eligibility criteria to enable more consistent reviewer interpretation and judgement.
We then applied the revised inclusion and exclusion criteria to the title and abstract of each identified citation. Two reviewers (JTC, RA or RW) independently screened 50% of the citations; the remaining citations were screened by just one reviewer (JTC, RA or RW).
One reviewer (RA or RW) independently screened all excluded abstracts. All reviewers then piloted inclusion and exclusion criteria on five full text articles (JTC, RA or RW) and decisions were discussed as a group. One reviewer (JTC, RA or RW) screened the full texts of all remaining articles. A second reviewer (RA or RW) independently screened the excluded articles. At all stages, disagreements were resolved through discussion or referral to a third reviewer (JTC, RA or RW) as required.
We used Endnote X8 software to support reference management and the study selection process.

| Quality appraisal
One reviewer performed quality appraisal, and this was checked by  (McArthur et al., 2015;13(3):188-195, 2015). We did not conduct quality appraisal of the protocols.

| Data abstraction
We developed and piloted a standardized data extraction coding set on a selection of included studies and adapted it for use with commentaries. We then used it to collect the following information from each study included at the full text stage: study details (such as author, date of publication, title, study design, topic area, study focus/ aim, population involved, ward setting and virus), population details (such as patient/nurse/family, mean age, ethnicity, socioeconomic status, gender and other equity characteristics), fundamental nursing care details, a description of the protocol (as appropriate), type TA B L E 1 Fundamental care defined of perception/experience obtained (for qualitative studies only) and the impact discussed or evaluated.
For protocols and guidance documents, we extracted the aspect of fundamental care covered, the guidance provided and the strength of the evidence/guideline (i.e. was it evidence-based, consensus-based, expert-based or opinion-based guidance).
One reviewer performed data extraction, which was checked by a second, with consensus achieved through discussion with a third person as an arbiter, when required.

| Synthesis
We classified data as reporting barriers to the provision of care, adaptations to the provision of care or protocols developed for aspects of fundamental nursing care. We used Microsoft Excel (2013) to present the map of the areas of fundamental care and the type of evidence available.
After initial familiarization with the papers and having extracted the data relevant to our questions, we selected one of the included qualitative research articles, a phenomenological study of healthcare workers in the H1N1 influenza pandemic by Corley et al. (2010), as an index paper for the synthesis, since the themes resonated with the data that we had extracted from the included empirical studies.
We used seven of the eight themes proposed by Corley et al. (2010) as a framework to structure coding of the data from the empirical studies which highlighted barriers to the provision of care (the eighth theme was related to a procedure not covered by this review). We then sought to add data from the COVID-19 pandemic perspective extracted from the commentary pieces, review articles, protocols and guidelines that either supported, or added new information, to that gleaned through research in pandemics. We used four of the seven themes in the framework to reflect four main themes and included the three remaining themes ('new roles for staff', 'staff morale' and 'fear and anxiety') as sub-themes under those four main themes. We then grouped the rest of the data into sub-themes relating to specific barriers to the provision of care.
To synthesize the data on adaptations, we reflected on the themes identified in the synthesis of barriers above and crosschecked whether the adaptations were related to those barriers. We found several key concepts that cut across the identified barriers, in that many of the barriers could be addressed using multiple different adaptations, and that some adaptations addressed more than one barrier. Consequently (and to avoid repetition in the text), the adaptations were collated into new themes and linked to the relevant barriers.
Due to the need to work remotely during the COVID-19 pandemic, we used Google Jamboard (Google, 2020) to conduct the framework synthesis. One reviewer (JTC, RA or RW) conducted the initial analysis of each paper, which was checked and discussed with a second reviewer.
We collated the protocols identified in the literature into a table to help us map out the areas of fundamental care for which plans for, and potential adaptations of, care of patients during a pandemic either had or had not been developed. We then added the guidance, research literature, reviews and commentaries to this table (gap map) to further enable us to identify areas of fundamental care that are lacking guidance and research to inform pandemic-specific adaptations to care.

| RE SULTS
Our systematic search generated 4517 references. We removed 1449 duplicate references, leaving 3086 references to screen at the title and abstract stage. We excluded 2919 references at that stage leaving 167 full texts to screen against the inclusion and exclusion criteria. After full text screening, we included 64 full text references; screening decisions and reasons for exclusion are provided in the PRISMA flow diagram below ( Figure 1).

| Characteristics of included studies
Of the 64 included papers, 19 were empirical research articles (Table 2) and the remaining 45 were review articles, commentaries, protocols and guidance documents (Table 3). These latter types of information are referred to as 'commentaries' below.
Study quality ratings are shown in Tables 4 and 5. All seven quantitative studies were rated as weak according to the EPHPP global rating (Effective Public Health Practice Project, 1998), due to study design, lack of accounting for confounders and poor reporting of withdrawals from the studies and analysis. The 12 studies that used qualitative methods were largely well conducted with most studies reporting no more than one or two 'weak' elements other than one study (Kuntz et al., 2020) which had six 'weak' elements.
Quality appraisal of the non-research papers is shown in Table 6. Only the three consensus statements (Morley et al., 2020;Wang, Zeng, et al., 2020; could be graded positively against all elements of the JBICTO (McArthur et al., 2015) with the remaining commentaries generally failing the element that suggests that it is supported by peers, as this was difficult to ascertain.
We synthesized the available literature to attempt to answer our three research questions. These questions are presented below along with the appropriate findings and discussion.

| Question 1: what is the impact of COVID-19 and other conditions requiring isolation on the provision of fundamental nursing care to patients with COVID-19 in hospital?
To answer this question we identified, appraised and synthesized the available evidence on:

TA B L E 3 (Continued)
(ii) the effectiveness of adaptations to overcome these barriers in terms of overall patient experience, care quality, functional ability and treatment outcomes.
We derived four main themes and 11 sub-themes from the data describing barriers to the provision of care.

Impact on nursing tasks
Wearing PPE, often in multi-layers, affected healthcare workers dexterity and vision, affecting everyday tasks, such as feeling for veins, position changing and aspirating patients Liu & Liehr, 2009;Liu, Luo, et al., 2020). PPE also restricted the amount of time healthcare staff could be with patients due to the amount of time it took to put on and off (Andertun et al., 2017;Viswanathan et al., 2020). This was supported by commentary evidence from nurses working with COVID-19 (Tsai et al., 2020). Healthcare workers also reported concerns about sufficient provision of PPE and having the appropriate knowledge/training to use it (Corley et al., 2010;Kang et al., 2018;Lee et al., 2020;Liu, Zhai, et al., 2020;Shih et al., 2007) and how this impacted on their confidence in delivering appropriate care safely.

Impact on physical health
Several studies highlighted the physical discomfort of PPE, which both directly and indirectly affected the ability to care for patients (Corley et al., 2010;Kang et al., 2018;Lee et al., 2020;Viswanathan et al., 2020). Wearing of PPE was reported to result in headaches, nausea, dermatitis, dehydration and exhaustion-either directly or by the act of not eating and drinking during shifts due to the time it takes to don and doff (Kang et al., 2018;Kim, 2018;Liu, Luo, et al., 2020;Liu, Zhai, et al., 2020). This was also supported by commentary evidence (Fedele, 2020

Workload
Several studies reported increased workload as a result of inadequate staffing levels (Chan et al., 2008;Corley et al., 2010;Liu, Luo, et al., 2020). In some cases, this led to feelings of fatigue, of staff being stretched to their limit, that units could not cope without staff working overtime and that the quality of care was in jeopardy (Chan, Leung, et al., 2006;Corley et al., 2010;Liu & Liehr, 2009).
Staff reported eroding of meal breaks-regarded as a very important way of coping with the difficult situation (Corley et al., 2010)-by the time taken to don and doff PPE and also by the activity of the unit. Difficulties were also reported in achieving the correct skill mix to deliver fundamental nursing care to patients. Whilst, increased ancillary staff levels were necessary to cope with additional cleaning, waste generated by PPE, patient transfers and support required when moving critically ill patients, matching the nursing skill mix to the high acuity level of patients, and being able to provide support to less experienced members of staff were also seen as challenges (Corley et al., 2010). These concerns were highlighted in commentaries related to COVID-19 where exhaustion was reported due to heavy workloads and protective gear (Chochinov et al., 2020).

New roles for staff
Several qualitative studies (Corley et al., 2010;Liu, Luo, et al., 2020;Liu, Zhai, et al., 2020) highlighted the challenges for junior staff, retired staff recalled into work and staff familiar only with working in other specialties, in having to cope with patients with complex care needs and unfamiliar environments. Commentaries on the impact of COVID-19 supported these reports (Bagnasco et al., 2020;Cathcart, 2020). Nurses in the qualitative studies reported the need for more knowledge about infectious diseases, how to care for the psychological needs of patients arising from isolation (Liu & Liehr, 2009) and the need for clear delineation around roles and responsibilities (Chan, Chung, et al., 2006). Although there were issues for staff related to inexperience, there were studies, which highlighted how some nurses relished the challenge of learning new skills and felt a strong responsibility, as a nurse, in having to do so (Kim, 2018).
Often new skills had to be learnt and mastered in a very short time (Liu, Luo, et al., 2020), in particular, around technology facilitating communication between staff, patients and families (Kuntz et al., 2020). Other challenges linked to changing roles were leadership (Holmgren et al., 2019), difficulties communicating across different departments and specialities (Liu, Luo, et al., 2020) and frequently changing guidelines.

| Theme 3: infection control procedures
In this theme, we identified two subthemes: controlling contamination; impact on visitors.

Controlling contamination
Several studies reported that increased levels of vigilance when monitoring patients, the need to ensure visitors wear the correct PPE, lack of or conflicting information about whether to treat patients as infectious, and the need to keep up with frequently changing guidelines added to the workload (Corley et al., 2010;Kang et al., 2018) and contributed to nurses' stress (Kang et al., 2018). Authors of studies reported that staff found combining infection control procedures with delivering appropriate health care problematic (Shih et al., 2007) especially where procedures were not always seen to be consistent with care policy (Corley et al., 2010;Lee et al., 2020).
Some nurses reported concern about the risk of contamination from taking uniforms home to wash (Corley et al., 2010;Viswanathan et al., 2020).

Impact on visitors
One intervention common amongst infection control procedures was to impose face-to-face visitor restrictions and/or reduce staff contact with patients. Several authors reported visitor restrictions causing a negative impact on the provision and experience of care for patients, nurses and families (Chan, Leung, et al., 2006;Corley et al., 2010). These include dignity and compassion during the end of life care (Danielis & Mattiussi, 2020;Rosa et al., 2020;Viswanathan et al., 2020), the sense of isolation experienced by patients and families (Fan et al., 2020) and the difficulty in delivering family-centred care for children (Chan, Leung, et al., 2006). Commentaries highlighted the impact of infection control procedures on the end of life care where personal items were now considered contaminated (Neville, 2020). The rapid isolation of patients to contain the virus was reported as leading to some patients and family members feeling uninformed (Fan et al., 2020). Others noted that whilst reducing multiple entries into a room or ward may help reduce risk of contamination and the need to don and doff PPE, this may further increase the isolated patients' sense of disconnection (Fan et al., 2020).

| Theme 4: emotional challenges of care
We identified four sub-themes that illustrated the emotional challenges of providing fundamental nursing care to patients in the context of a pandemic including: fear and anxiety; lack of staff support in work or the community; difficulties with interaction between staff, patients and their families; burden of care.

Fear and anxiety
Fear and anxiety were common feelings reported by healthcare staff in several studies including the fear of the unknown and the fear of contracting the disease. Fears arose partly due to uncertainty about the disease, but were also related to concerns about the adequacy of PPE (Chan, Leung, et al., 2006;Corley et al., 2010;Kang et al., 2018;Kim, 2018;Lee et al., 2020;Liu, Luo, et al., 2020;Shih et al., 2007;Shih et al., 2009). Staff reported fear and anxiety in relation to transmitting infection to colleagues, family and friends (Kang et al., 2018;Liu, Luo, et al., 2020;Shih et al., 2007;Viswanathan et al., 2020).
These observations and experiences are also supported by commentary evidence (Adams, 2020;Chochinov et al., 2020;Fedele, 2020;Rosa et al., 2020). Uncertainty about how best to care for patients, and fears about the risks of becoming infected created self-doubt amongst staff and left some hesitant about wanting to be near or care for patients (Kim, 2018;Liu, Zhai, et al., 2020).

Lack of support in the workplace or in the community
Authors of several research studies reported that nurses value comradeship with their colleagues, but a lack of support in their work place (Kang et al., 2018;Kim, 2018) left them feeling unappreciated (Kim, 2018). Other authors reported that staff felt isolated and alienated due to their place and context of work (Kim, 2018;Lee et al., 2020). Nurses working on isolation wards reported feeling stigmatized by their peers and society, sometimes accentuated by the media .

Interaction between patients, staff and family members
In addition to the role of family members being already restricted during pandemic situations (Kim, 2018;Lee et al., 2020), authors of several research studies reported further challenges that staff face in communicating and interacting with patients and their families (Liu, Luo, et al., 2020;Rosa et al., 2020;Shih et al., 2007). This included the difficulties of using technology in maintaining good communication in stressful situations (Liu, Luo, et al., 2020) and sharing difficult news and end of life experiences with families . The combined effect of these measures was reported as leading to patients being left alone between ward rounds with no-one to comfort them (Andertun et al., 2017), psychological issues developing for patients (Liu, Luo, et al., 2020) and staff needing to deal with the emotional aftermath for patients of limited contact with their families (Danielis & Mattiussi, 2020). Concerns relating to dying with dignity and dying alone were also raised as an area of concern for staff and families during the COVID-19 pandemic (Danielis & Mattiussi, 2020).

Burden of care
The unfamiliarity of infection care work, wearing of protective gear and lack of necessary skills in using new equipment added to the burden of nursing care . Some research reported that wards used to care for and isolate patients with SARS were improvised from any space available around the hospital. This sometimes meant they did not meet the criteria for infectious disease units and often lacked appropriate equipment. As a result, nurses felt that they could not do enough for the patient (Chan, Leung, et al., 2006;Liu & Liehr, 2009).
Evidence from previous pandemics suggests that nursing staff often feel an inability to meet patients' needs (Chan, Leung, et al., 2006;Lee et al., 2020;Viswanathan et al., 2020) and, in particular, that they are failing to protect their patients' dignity while dying . Some nurses reported the challenges they felt from dealing with the 'same type' of patients (patients with the same high level care needs) as they acknowledged these patients required additional emotional support, which left nurses feeling 'burned out' (Corley et al., 2010). Other studies reported the counter-intuitive feelings of having to put their own or their colleagues' safety above the needs of their patients (Andertun et al., 2017;Liu, Luo, et al., 2020), the guilt of those unable to work while their colleagues were over-burdened and the emotional burden of the constant barrage of news and conversations about the pandemic (Viswanathan et al., 2020).
Commentaries suggest similar experiences are happening during the COVID-19 pandemic with barriers to fulfilling fundamental care needs reported from several sources (Cathcart, 2020;Cena et al., 2020;Chochinov et al., 2020;Danielis & Mattiussi, 2020). There have been concerns with the lack of emotional support that nursing staff are able to offer patients and their families, and where the increasing strain on the health care system may mean that decisions about patient care are based on resource and protection of others, rather than being patient-centred (Danielis & Mattiussi, 2020;Feder et al., 2020;Viswanathan et al., 2020). Commentaries also describe staff burnout, moral distress , dealing with patient anxiety (Fan et al., 2020), and a lack of formal and informal peer support for nursing staff as a result of structural changes and the loss of dedicated spaces to promote community in the hospital environment (Hofmeyer et al., 2020a).

| Adaptations
Four areas of potential adaptations were identified that cut across the barriers highlighted above: communication, organization of care, support for nursing staff and nurse leadership.

| Communication
Several research studies highlighted the importance of communication between nurse leaders and other nursing staff, between staff and patients, and staff and their patients' significant others.
Communication was described as key for sharing burden, as well as being able to interact with patients and their families and meet patients' needs, particularly when staff were undertaking new roles (Hart et al., 2020;Shih et al., 2009).
Authors of commentaries highlighted several approaches to counteract communication difficulties caused by wearing PPE, ranging from putting photos of staff faces on aprons and visors, putting smiles on facemasks or exaggerating non-verbal communication (Brown-Johnson et al., 2020;Pettis, 2020). Further examples include staff communicating with patients and colleagues using whiteboards, blackboards, intercoms, cards and post it notes (Bagnasco et al., 2020;Fedele, 2020). One commentary described sharing expertise from palliative care by using the Patient Dignity Question (PDQ) which asks patients 'What do I need to know about you as a person to take the best care of you possible?' to promote empathy and connectedness with patients (Chochinov et al., 2020).
Others reported using technology to allow contact with families and psychological care services (Neville, 2020;Pettis, 2020;Tsai et al., 2020). Similar suggestions relating to the use of technology also included establishing a communication plan with patients and family members that sets out who will be involved and when and to identify and mitigate any barriers (Hart et al., 2020); allowing patients to see their health care plan to monitor results of tests and enable patients to make requests and ask questions to the nursing team (via a tablet or similar) (Fan et al., 2020); using video-conferencing with interpretation services (Diamond et al., 2020;Hart et al., 2020;Humphreys et al., 2020); ensuring a bedside telephone to enable patients to contact their families where more advanced technology is not available or appropriate (Fan et al., 2020) and highlighting the importance of preparing families before seeing their critically ill loved ones by spending time describing the patient's visual condition before establishing a video connection with the patient (Kuntz et al., 2020). However, some commentators suggested that it is not feasible to deliver (or receive) comprehensive instruction around telehealth and communication in a pandemic situation (Hart et al., 2020).
Where face-to-face communication is not possible, it is suggested that other practices can build on and improve relationships between patients and staff, such as the improvement of patient and family education resources to ensure new knowledge builds on existing understanding (Tiwari et al., 2003); the use of daily communication to keep family members updated (Chan, Leung, et al., 2006); sharing information about the disease and care plans with staff, patients or family to ensure any concerns are dealt with (Shih et al., 2007); making provisions for face to face visiting at the end of life (Estella, 2020); ensuring patients and their family receive clear explanation of any restrictive policies that limit the physical presence of family members (Hart et al., 2020); using language and tone that seek to defuse and avoid conflict and using public information materials that empower patients and families to anticipate and prepare for next steps (Hart et al., 2020). Some research highlights how alternative models of staffing have been used to address care. These include a 'two-by two' rule, under which nurses caring for patients with SARS did everything in pairs, assuring that a nurse always had someone to turn to for assistance (Liu & Liehr, 2009); 'modular care' to promote patientfocused care by enabling health care staff to spend more time getting to know their patient and provide continuity of care (Chan et al., 2008;Chan, Chung, et al., 2006); co-ordinating care or communications with patients so that times when the nurse planned to be in the room for patient care could also be used to undertake other tasks such as introducing or removing items from the room and participation in meetings with either other care staff/ teams or family communication (Kuntz et al., 2020). Another example is a data-based nursing care model used with paediatric patients with suspected SARS, striking a balance between attending to the physical and psychological needs of the child and adhering to precautions for combating disease spread (Chan, Leung, et al., 2006). This study introduced an early discharge policy where for a suspected SARS patient a more speedy discharge decision was made once the child had a good response to treatment, or tests were negative (Chan, Leung, et al., 2006). Commentary evidence suggested that sharing expertise across specialties to enable care teams to deliver the most appropriate care, for example a palliative unit nurse providing in-service training to nurses on a COVID-19 ward (Pahuja & Wojcikewych, 2020) or determining the most appropriate tasks for team members with and without critical care training, helps tackle problems with lack of experience (Martland & Huffines, 2020).
Other organizational adaptations included introducing a higher nurse patient ratio, providing more breaks while on duty and scheduling a shorter working week (Tiwari et al., 2003); increasing ancillary staff levels to cope with extra cleaning duties, extra waste management, patient repositioning and transfers (Corley et al., 2010); amalgamating activities and designating a nurse to be a 'runner' to retrieve supplies or medications, thereby preventing the need for staff to don and doff PPE (Newby et al., 2020) and providing staff with hot meals in disposable trays, snacks and comfort food directly to the wards (Cintoni et al., 2020). Also suggested were organizing staff huddles to discuss team assignments, patient care goals and red flags that should be reported immediately at the start of and at regular intervals throughout a shift which are also thought to support better communication between staff and staff teams (Cathcart, 2020;Martland & Huffines, 2020).
Further examples included physical reorganization of the hospital environment such as increasing space between beds, between staff and between patients; providing patients with bottled water, and not allowing family to bring in home-cooked food (Tiwari et al., 2003); the introduction of a 'no-touch' policy to reduce the amount of the infectious virus on PPE (Liu & Liehr, 2009); allowing theatre scrubs to be worn while working in the isolated unit and laundering uniforms in the hospital (Corley et al., 2010;Viswanathan et al., 2020). Further adaptations suggested include small changes such as providing personalized meal provision to meet the increased energy and protein requirements of patients who are able to eat while supporting those unable to eat with nutritional formulas (Cintoni et al., 2020). Staff changing their routines, such as showering before leaving the hospital, wearing easy to clean rubber shoes (Fedele, 2020) and staying in hotel or rental accommodation (Viswanathan et al., 2020) have also been suggested.
Other commentaries reflected on how the use of technology (for example tablet computers) may ease some of the pressure on health care staff by reducing the number of individuals entering a patient's room to undertake physiological monitoring and enabling an electronic signature system on a tablet (Hart et al., 2020;Humphreys et al., 2020;Newby et al., 2020;Pahuja & Wojcikewych, 2020;Tsai et al., 2020;Umoren et al., 2020).
Adaptations that focus more on the organization or experience of the end of life care included facilitating family visits by educating and supporting a single designated family member, thus ensuring a balance between infection prevention control policies and familycentred care (Bouchoucha & Bloomer, 2020) and working with infection control teams to create innovative framed reminders of deceased loved ones, such as fingerprints or print outs of electrocardiograms (Neville, 2020).

| Support for staff
Providing appropriate levels of care and training for nurses themselves by ensuring staff are physically and mentally well and have the knowledge and confidence to deliver the best care possible can break down many barriers to patient care.
Some research highlighted mechanisms to improve support for staff in the workplace including holding daily meetings between senior medical and nursing staff which provide a forum to problem solve and feedback issues to each other (Corley et al., 2010) and other group-based interventions to share experiences in a peer setting, learn from peers and build a sense of solidarity and camaraderie (Viswanathan et al., 2020). The medical and nursing management team can ensure extra measures to show appreciation for the hard work of staff, e.g. by providing food, such as pizza, chocolates and fruit platters and messages of thanks (Corley et al., 2010). Furthermore, acknowledging the importance of staff caring for each other on the ward (Liu & Liehr, 2009) and providing self-care tips such as encouraging minibreaks, brief mental relaxation or short meditation strategies, physical exercise, sleep, healthy nutrition, recreation and reducing media contact (Fedele, 2020;Viswanathan et al., 2020) can also help staff to fee supported.
Several commentaries also promoted the idea of psychological support to enable staff to talk about concerns or fears and support each other, either via mental health professionals or pastoral supporters (Bagnasco et al., 2020;Cathcart, 2020;Hofmeyer et al., 2020aHofmeyer et al., , 2020bMartland & Huffines, 2020;Morley et al., 2020).
Others highlighted the need for staff leaders to be proactive in anticipating potentially difficult/challenging situations (Morley et al., 2020) to prevent staff burnout, encourage self-care and wellbeing and promote strategies for dealing with moral or psychological distress, safe use of PPE and maintaining a healthy work environment (Hofmeyer et al., 2020b;Martland & Huffines, 2020). Some mentioned taking time to honour patients by stopping work and standing in silence for a short time to acknowledge the death of a patient (Cathcart, 2020) or describe the use of 'Schwartz rounds' that bring clinical and non-clinical staff together to discuss the psychological and emotional impact of caring for patients and families (Hofmeyer et al., 2020a).
Authors reporting interview studies of nurses caring for patients with SARS (Liu & Liehr, 2009) and MERS (Kang et al., 2018) described the importance of empirical knowledge about infectious diseases in general and specifically the risk of contagion in enabling nurses to meet complex patient needs. Establishing consistent and solid practice guidelines early on, sharing them clearly (Kang et al., 2018;Liu & Liehr, 2009), training health care workers to deliver the information and building consensus among team members about infection control procedures (Shih et al., 2007) were also high- Several commentaries discussed how information could be better collated and distributed so that the burden of keeping up to date with constantly changing guidelines and practices was reduced to a more consistent communication chain (Adams, 2020;Martland & Huffines, 2020).

| Leadership
Several authors reflected on the best management style for nurse leaders during a pandemic and reported how leadership can affect communication, wellbeing, knowledge and feelings of support.
One study highlighted the importance of a supportive informed leader. The qualities of a good leader in this context incorporated listening, professionalism, calmness, experience, effectiveness, encouragement, empathy, social competence, support, information and objectivity (Holmgren et al., 2019). Other leadership skills designed to empower nurses to work as experts and positively influence the quality of care pertain to the organization of care, being confident in making changes to optimize workflow (Tsai et al., 2020), and acknowledging nurses' work as valuable (Kang et al., 2018).
Commentaries on the COVID-19 pandemic highlighted the need for nurse leaders to promote a healthy work environment and reinforce staff resilience. Suggestions included actively and meaningfully engaging in communication, recognizing their efforts and burden of care (Martland & Huffines, 2020), collaborating with staff to identify ways to acknowledge and reward effort, promoting flexible, family friendly work environments that meet the needs of a diverse workforce, understanding what motivates their staff to do their best work, supporting work-life integration and recommending trusted sources to support self-protection and maintain wellbeing (Hofmeyer et al., 2020a).
Having been able to use the synthesis to answer our first research question and identify several potential adaptations to providing fundamental nursing care, we hoped also to be able to find evidence to help answer our second research question. However, our searches did not identify any literature that specifically investigated the impact of any adaptations on our outcomes of interest-overall patient experience, care quality, functional ability or treatment outcomes for patients. Three research studies described the use of adaptations such as the use of telemedicine for family interactions (Kuntz et al., 2020), ward rounds (Umoren et al., 2020), or a change in the organization of care on the ward (Chan et al., 2008), with one study describing an intervention to support nurses (Viswanathan et al., 2020). Although these studies do not report on our outcomes of interest, one does suggest that the use of technology to communicate with families (E-Family meeting) enabled families to understand the condition and needs of their loved one whilst in hospital and to build their trust in the clinical team (Kuntz et al., 2020). Using this type of technology was also reported to reduce the use of PPE (Kuntz et al., 2020;Umoren et al., 2020). Another study which looked at a change in the organization of care (modular care) (Chan et al., 2008) suggests that 54% of nurses reported improvements in nurse-patient interaction resulting from perceived improvements in continuity of care, 26% of nurses believed their work became more efficient and 38% believed that the organizational adaptation had resulted in enhanced infection control. The same study reported using a generic patient satisfaction scale to score the patients' overall experience of care during the organizational change, no statistically significant differences in satisfaction were reported but it was proposed that nurse-patient ratios influenced patients' expectations of nurses (Chan et al., 2008).

|
Finally, to inform our third research question, we used the literature identified in this review to produce a summary of the available protocols, guidance and research related to specific aspects of fundamental care during a pandemic.
3.5 | Question 3: what are the areas of fundamental nursing care, for patients with COVID-19 in hospital, that are evident/missing in published protocols and guidance? We identified eight care protocols that gave updated guidance for aspects of fundamental care during the COVID-19 pandemic.
Of these, four focused on nutrition practices (Aguila et al., 2020;Caccialanza, 2020;Cena et al., 2020;Chapple et al., 2020), three on the re-organization of care and/or nurse support (Buheji & Buhaid, 2020;Fausto et al., 2020;Maben et al., 2020) and one on communication practices with patients and families (deLima Thomas et al., 2020) (see Table 3). This highlights how few areas of fundamental nursing care have been the focus of new or updated guidelines. One of the most notable areas in this table is the lack of any research evidence or commentaries that take into account patients' perspectives of their experience of fundamental nursing care or any of the adaptations that are made to improve the delivery of this care.
The impact of these barriers on nursing staff and the lack of hospital preparedness for delivering nursing care during a pandemic is real, and calls remain to encourage healthcare organizations to have systems in place that can support staff and give them confidence in working during pandemic and other health care emergencies (Manzano García & Ayala Calvo, 2021). Furthermore, the need for nurse leaders to be proactive in hearing, protecting, preparing, supporting and caring for their staff is also reiterated (Hofmeyer & Taylor, 2021). ingly few for an area of care that is so essential to patient experience and that covers such a broad range of care elements. Studies were not excluded based on their quality but the poor quality of the few quantitative studies available must be taken into account for future research and implementation work. Our decision to include English language only studies was taken as a result of time and resource restrictions and may mean some experiences were not included in this synthesis. Our inclusion of commentaries in this review is unusual but we wanted to be able to capture the experiences of and adaptations to care that might also be prominent or developing in the COVID-19 pandemic and might not yet have been reported in established research literature. The commentaries cannot be considered with similar confidence as the research. Although there are some limitations to using an index paper to guide analyses, our approach, although deductive, was also responsive to capture the themes identified in the literature and the index paper was used as an initial 'scaffold' for the analysis once data had been collected rather than guiding the data collection itself. We also note that given the a Aspects of fundamental care as defined by Kitson et al. (2010). Defining the fundamentals of care. Int J Nurs Pract, 16, 423-434. The number in each cell refers to the total number of pieces of literature in this review that applied to that domain similarly the colour of each cell refers to the amount of literature on one particular domain as follows: 0 = , 1-5 = , 6-10 = , 11-15= , >15 = .

TA B L E 8 (Continued)
review did not include the nursing care of unconscious invasively intubated patients.
More high-quality research is needed to understand the real impact of the many adaptations found in this review on the experience of patients' and healthcare staff, and on the organization and delivery of care. Consequently, the themes and evidence summaries identified in this review (along with data from the survey and consensus groups from the wider study) have been used to develop a pandemic-specific fundamental nursing care protocol (ISRCTN 13177364) (Richards et al., 2021) which we are now testing in a cluster randomized controlled trial. This trial will be the first such empirical test of many of the suggestions made by researchers, clinical nurses and commentators in the reports cited in our review here.
There is, nonetheless, room for many more studies into the impact of these strategies, individually or combined, on patient experience, care quality, functional ability and treatment outcomes. and draws attention to some of the adaptations that might be helpful to work through these barriers. However, the research behind these adaptations is lacking and therefore the predicted improvements in the delivery and experience of care and support for both patients and health care staff remain uncertain. To be prepared for the ongoing COVID-19 pandemic and any future pandemics, research on adaptations to healthcare delivery and staff support must be prioritized to understand what will enable healthcare services to respond quickly and confidently in similar situations in the future.

CO N FLI C T O F I NTE R E S T
No conflict of interest has been declared by the authors.

PEER R E V I E W
The peer review history for this article is available at https://publo ns.com/publo n/10.1111/jan.15047.

DATA AVA I L A B I L I T Y S TAT E M E N T
Data sharing not applicable-no new data generated.