- Research article
- Open Access
- Open Peer Review
Uses of quick response codes in healthcare education: a scoping review
BMC Medical Education volume 19, Article number: 456 (2019)
To review published literature on the use of quick response (QR) codes within healthcare education. In addition, the authors aimed to gain information on user perceptions and the challenges faced when implementing QR codes in an educational context.
Medline, EMBASE, CINAHL (Cumulative Index to Nursing and Allied Health Literature), HMIC (Healthcare Management Information Consortium) and HBE (Health Business Elite) were searched using specified search terms that included ‘quick response code’ and ‘education’. Title and abstract review of 217 publications was performed. Papers which discussed the application of QR codes relevant to healthcare education were included. A total of 24 articles were reviewed and thematic analysis conducted to generate themes.
Use of QR codes in healthcare education were broadly aligned to four common themes. These included: to increase participant engagement, for simulation training, for just-in-time (JIT) learning and to facilitate with administrative tasks in training. Perceptions towards the use of QR codes was generally positive. Challenges identified, included: problems with technical infrastructure, unavailability of smartphones and resistance to use in certain environments.
The use of QR codes for healthcare education is increasing, and whilst they offer some advantages there are also some important considerations including: provision of the necessary technological infrastructure, patient and staff safety and governance and adherence to guidelines on safe and appropriate use of this technology in sensitive settings.
In 1994, quick response (QR) codes were developed by Denso Wave, a previous subsidiary company of Toyota, to track car components during manufacturing and distribution . Denso Wave holds the patent for QR codes but has made the technology widely available, free of cost. Since then, the use of these black-and-white pixelated squares has rapidly increased, due to their ability to contain more information than a standard bar code in a 10th of the space and their high-speed, omnidirectional scanning capabilities.
QR codes can be easily created online from a range of websites. They can link to simple text, a website, a template email or text message, make a phone call, show a geographical location and access a PDF or specific application on a mobile device . The increased availability of smartphones with cameras has led to QR codes being applied to a wide range of commercial applications including: marketing , ticket management in transportation  and more recently, social media applications such as Snapchat .
The versatility of QR codes has also generated interest for use in a number of healthcare settings. Applications have been explored for storage of case histories in maxillofacial radiology , safer use of medications by elderly patients  and patient instructions following orthopaedic cast application .
In addition, QR codes have been shown to have value in education. Technology now facilitates a greater variety of visual learning materials. Integration of verbal and visual learning materials in spatial contiguity reduces the split-attention effect . In addition, QR codes could offer a method to temporally link a variety of materials reducing learners’ extraneous cognitive load. QR codes can be thought of as advocating a student-centred learning approach by giving students’ autonomy over what and how they learn . QR codes can help to enhance students’ intrinsic motivation and allow accommodation of different learning preferences by providing enrichment of current learning materials, allowing flexibility for accessing materials and offering self-assessment opportunities . Through the paradigm of social constructivism, QR codes are enablers of learning through interaction as demonstrated in studies by Al-Khalifa  and Chaisatien and Akahori . Specific examples are detailed below.
In the classroom, Rikala & Kankaanranta demonstrated that QR codes support both independent and collaborative learning approaches and can engage learners . Lai et al. demonstrated how QR code incorporation onto green maps  could help to achieve learning outcomes, provide opportunities for further interaction and allow for teaching in a diverse range of locations. Lee et al. used QR codes during a biology field trip  and postulated that it could more effectively motivate learners than non-digital means in today’s “information” generation. The potential for healthcare professional education holds equally promising potential, but literature on this topic has not yet been reviewed or mapped.
In this review, we aimed to explore the use of QR codes specifically for healthcare education, identify perceptions towards their use and any challenges that have been encountered during implementation.
The review followed the PRISMA (preferred reporting items for systematic reviews and meta-analyses) extension for scoping reviews checklist and explanation . Arksey and O’Malley’s six steps were used as the methodological framework .
The research questions that guided this review were:
How are QR codes currently being used in healthcare education?
What are the perceptions of individuals that currently use QR codes for healthcare education?
Have challenges been identified when implementing QR codes for healthcare education?
Identification of relevant studies
Databases used for the search were Medline, EMBASE, CINAHL (Cumulative Index to Nursing and Allied Health Literature), HMIC (Healthcare Management Information Consortium) and HBE (Health Business Elite). These were selected following discussion with a clinical librarian to identify those most likely to produce the greatest number of relevant articles.
Database searches were undertaken on 8 February 2019. The following keywords were used: qr. ADJ3 cod*, (quick response) AND ((barcod*) OR (cod*)), matrix ADJ3 barcod*, ((two-dimensional) OR (2d ADJ3 barcod*) OR (cod*)), ((Educat*) OR (train*) or (instruct*). MeSH (Medical Subject Headings) terms included: medical education, professional education, clinical competence and inservice training. These keywords and MeSH terms were combined with Boolean operators to yield relevant results.
The search was conducted without time or language restrictions. A total of 185 records were obtained. Additional records were identified through other sources, such as Google Scholar and reference mining, bringing the total number of records to 217.
All articles were initially screened for suitability from the title by CTK and AH. Articles were included if they discussed an application of QR codes (n = 110). Abstracts were subsequently and independently reviewed for eligibility by CTK and AH, before a further review of the full article. Records were excluded if the main application of QR codes was not for healthcare education (n = 57) or if it did not discuss an original application for QR code use (n = 29). Any disagreement over article eligibility was resolved through further discussion between CTK and AH.
The PRISMA flowchart was used to show the search strategy and subsequent study selection process (Fig. 1). Citations and bibliographies were managed using the software package Mendeley Desktop for macOS (Mendeley Ltd., London, UK).
Charting, collating and reporting of the studies
A data-charting form was created by CTK and AH on an Excel spreadsheet using Microsoft Excel for Mac Version 16.25 (Microsoft Corp., Redmond, WA, USA). Data concerning study design, methods, participants, the intervention and outcomes were extracted independently from the articles by CTK and AH. This was followed by narrative information on problems associated with the application of QR codes. A further review of the form was performed thereafter to ensure consistency and agreement on extraction of relevant information.
Narrative data synthesis was conducted using thematic analysis. This was performed by CTK, AH and SC using content analysis to categorise, code and sort articles on QR codes in healthcare education into distinct uses. Any conflicts over coding of articles was resolved through further discussion between CTK and SC.
A total of 24 articles published between 2011 and 2019 were included in this review. Most studies took place in Western countries (United States being the major contributor (n = 11)). The majority of articles reported the use of QR codes for nursing students (n = 6). Article types included research articles, editorials, communications and commentaries. A summary of article characteristics is show in in Table 1.
The main uses of QR codes in healthcare education emerging from thematic analysis were as follows:
Increasing participant engagement
Just-in-time (JIT) learning
4) Training support
Table 2 summarises all articles included in this review.
Theme 1: increasing participant engagement
Nine articles discussed ways in which QR codes could be utilised to enhance participant engagement [20, 28,29,30,31,32, 36, 40, 42]. These can be broadly divided into those focusing on anatomy teaching, formative assessment, case-based learning and engagement with publications.
Three articles discussed the application of QR codes for anatomy teaching [32, 36, 40]. Mogali et al. reported how a medical student’s experience of an anatomy specimen museum could be enhanced by the use of QR codes  attached to specimens. This allowed further contextual information to be gained, such as annotated images and clinical histories. In this study, 78% of students agreed that QR codes were useful for learning and the majority of students agreed or strongly agreed that specimen information was easy to access via QR codes. Key benefits of QR codes cited by the author included its low-cost and adaptability in any learning environment. It also limits damage to specimens from actual handling. In a similar manner, Siderits et al. used QR codes to facilitate the distribution of, and enhance the educational content at, tumour board presentations .
Two studies used QR codes to aid learning through formative assessment [40, 42]. From questionnaire responses, over 80% of students reported that they found QR codes to be more helpful than traditional learning aids. However, despite this, neither study demonstrated a positive impact on student examination performance compared to the control group. There were high levels of total engagement in both cases and students using QR codes for gross anatomy learning, in particular, appreciated the receipt of immediate feedback. The authors also discuss how their use can act as a cost-effective self-assessment solution .
Lin et al. investigated the use of QR codes during a pharmacology course for third year nursing students in Taiwan [28, 29] and reported most participants held positive attitudes towards QR codes, with their utility for learning activities being cited as a key benefit. Lin noted that when used for case-based learning, a subset of students performed better in asking questions and discussions than they did prior to the introduction of QR codes.
Finally, an editorial by MacRae reported on the introduction of QR codes onto articles in the journal, Neurosurgery . This has allowed linking to further multimedia information and easier dissemination by readers.
The majority of the aforementioned studies demonstrated how students found QR codes easy to use [20, 28, 29, 40, 42] and had a desire to continue using them in the future for classroom exercises or otherwise [20, 28, 29, 42].
Problems associated with implementation of QR codes for increasing engagement included: the requirement for internet access for full functionality [29, 42] and difficulties with downloading a QR code reader onto smartphones [40, 42].
For anatomy teaching, limitations were related to the sensitive information or images that may be contained within QR codes. Two studies therefore had to remind students that learning resources were for personal use only [32, 40]. Mogali et al. password protected PDF documents that were linked to QR codes to prevent amendments and printing . Additionally, Traser et al. indicated that students were reluctant to bring their phones into a gross anatomy laboratory .
Interestingly, 47% of students in Lin’s study declined to trial the use of QR codes because of eyestrain from the use of cellular devices and distractions from work by surfing the internet . Zurmehly et al. also noted that not all students had a smartphone . This problem was overcome during the study through pairing students without a smartphone with those who did have one. Other limitations discussed included the need to ensure QR codes were large enough and not wrinkled from the surface they were applied to; both of which would make it harder for the scanner to read.
Theme 2: Just-in-time (JIT) learning
Six articles discussed how QR codes can be used for JIT learning [25,26,27, 34, 39, 41]. This is a paradigm in which training is available on demand and can be accessed by staff when needed . These applications can be broadly divided into those that allow reference to guidelines [26, 27, 34, 41] and those that contain information on how to perform a skill or use a piece of equipment [25, 27, 39]. For example, Tracey et al. discuss the recording of video clips demonstrating step-by-step procedures for wound care, medication administration and Foley catheter insertion . Downer et al. discuss the use of QR codes for using equipment such as blood pressure machines .
Articles on the use of QR codes for referencing include checking plastic surgery and immune-related adverse event guidelines [26, 41], allowing nurses to view the management guidelines for falls  and accessing doctor’s phone numbers, in a labour room . Rosario et al. demonstrated that QR codes provide high levels of functionality, usability and usefulness . Gardiner et al. perceived that QR codes have a significant role in disseminating information to both healthcare staff and patients, with environmental and cost benefits because QR codes can ‘never run out’ .
The majority of articles containing JIT learning for skills or equipment-use, are linked to a video clip that the user could watch [25, 39]. Benefits associated with this included decreasing the downtime of students as they no longer had to wait for a facilitator to demonstrate  and the portability of the videos from access on a smart device .
A number of studies [25, 34, 39] have reported how healthcare staff find QR codes suitable for JIT learning as they are convenient and allow access to material in their own time and at a suitable pace for them. Interestingly, Tracey et al. noted how the response to the use of QR codes was overwhelmingly positive, particularly from the millennial generation .
Similar to other studies [29, 40], Jamu identified a reluctance to use devices in certain environments . In this case, a clinical environment in front of patients. Additionally, Jamu noted a need for technical support in those with ‘little or no’ previous IT experience.
Theme 3: simulation
Four articles discussed the adoption of QR codes to aid with simulation [21,22,23,24]. Damjanovic discussed the use of QR codes in creating a low-budget point-of-care ultrasound simulator . QR codes were printed and stuck on an ultrasound phantom for practice. This provided a less resource intensive solution compared to radio frequency identification or near-field communication alternatives that require hardware. However, it was acknowledged that there is a time cost related to ensuring correct coding for corresponding video clips.
A novel use of QR codes in augmented reality (AR) integrated simulation training was reported by Carlson . In this study, an average of five QR codes were used per scenario to act as a marker in order to trigger virtual images from AR software. Facilitators also had QR codes that could be scanned in order to validate a correct action. Perceptions related to this integrated simulation were rated positively, although no specific questions relating to the use of QR codes were asked. Users also felt that this particular application was a not a replacement for more traditional simulation teaching.
Two studies discuss QR code application in combination with gamification to allow for the identification of a simulated patient or medication or in order to identify the user involved [21, 23]. Problems were identified with their use during these studies. These included difficulties with the QR code scanner reading the code during a game  and, as previously discussed, difficulties in co-ordinating a reliable internet connection and downloading a QR code scanner .
Theme 4: training support
Sobhani et al.  and Reynolds et al.  both investigated how feedback could be received through assigning an individual QR code to each student or resident that could then be scanned by a faculty member. In both cases, it was demonstrated that faculty found the QR-linked feedback form superior to the paper alternative.
Sobhani et al. demonstrated that faculty found the feedback method easier to understand and navigate, with faculty feeling more comfortable to approach students . However, students from the study did not report increased efficacy to elicit feedback when compared to the paper form.
Reynolds findings from a mix of faculty and students indicated that the QR form provided improved educational benefits . Overall, more evaluations were also submitted by residents over 6 months compared to paper assessments.
Snyder et al. compared the use of QR feedback forms at 15 family medicine clerkship sites across the United States to online or paper alternatives . It was found that the QR feedback forms were associated with the highest usability score and took the shortest amount of time to prepare by students. Although, adoption of the QR feedback forms was challenged by wireless network limitations.
Avidan et al. discussed the use of QR codes for improving the logging of cases for anaesthetic trainees . In this study, QR codes were generated by a computer system at the conclusion of each case containing information such as the date of surgery, type of surgery and type of anaesthesia. This was then scanned by a trainee using their smartphone to store the data in their own spreadsheet. Avidan et al. hypothesised that this method would reduce reliance on the IT department, whom trainees contacted to receive a list of all their cases at the end of their residency. It would also ensure that trainees did not come to the end of their residency and realise that they had not performed enough of a particular type of procedure, at which point the deficit would be harder to correct.
Evaluation was performed prior to the introduction of QR codes and then at 3 and 6 months after introduction. Residents rated that usability of the technology highly and most stated they would recommend the use of QR codes for case logging to colleagues. The overall rate of case logging had increased by over 45% when compared to before the introduction of QR codes.
This review has provided an overview of the diverse uses of QR codes in healthcare education. We reviewed 24 articles, published over the last 10 years, which demonstrated that the exploration of QR codes for healthcare education is still in its infancy. However, over half of the articles reviewed were published in the last 2 years, suggesting an increasing interest in the subject area.
The key benefits of using QR codes for healthcare education lie in the ability to provide timely, multimodal information in a cost-effective manner. Several studies demonstrated an improvement in engagement from students or faculty [19, 28, 29, 32, 33, 37, 38, 40, 42], which may be due to ease of use, availability and immediacy compared to other available methods of accessing information. Additional benefits lie in adaptability, simplicity of creation and potential environmental benefits of QR codes. In addition, the use of dynamic QR codes allows the creator to monitor useful metrics including: where the code was scanned, device used to scan and at what time the code was scanned. This could allow identification of topics that students are finding more difficult, or help in producing more tailored resources for students as a result .
In addition to the included articles, we identified three published conference abstracts that provided further examples of QR code utilisation for healthcare education. Following the introduction of QR codes to access a form to record procedural experiences by anaesthetic trainees, Singhapricha et al. demonstrated a 52% increase in the number of intubations and central venous access procedures logged, compared to the previous year . Kee et al. have demonstrated that using QR codes in anaesthetic presentations help to enhance submissions by offering immediacy and raising the level of participation of the reader . Additionally, a questionnaire distributed to members of the International Society for Medical Publication Professionals by McGrath and Fisher aimed to gain insight into the benefits of using QR codes for scientific poster presentations . Suggested benefits included: increased audience engagement, wider data dissemination, enhanced poster metric tracking and increased capacity for multimedia presentation.
Our review has also highlighted some important considerations and potential challenges associated with the use of QR codes in healthcare education, particularly in a clinical setting.
Firstly, use of smartphones in the clinical environment to scan QR codes could be perceived as unprofessional by some patients. Thus, consideration needs to be given to the governance of introducing a QR code solution into a healthcare education setting. It is important to advise doctors, trainees and students on appropriate use of smartphones to scan QR codes in the clinical environment and to inform patients that smartphones are being used to support teaching. In addition, there are potential risks when using a smart device in certain settings, such as in an anatomy laboratory  where accidental or deliberate inappropriate sharing of sensitive (or patient identifiable) information could occur. Similarly, teachers need to ensure QR codes intended for healthcare professional education are secure and can only be accessed by the intended audience.
Secondly, several authors identified the need for a fast and reliable internet connection which can be a limitation in some clinical areas [23, 34]. Two studies overcame this, either by choosing ward areas with adequate Wi-Fi signal  or by boosting the existing hospital Wi-Fi . However, these options may not be applicable to all institutions worldwide and more widespread QR use may require improvement in technological infrastructure.
Other problems related to an inability to scan QR codes, either due to difficulty with the scanner or the way in which the QR code was displayed. However, these are likely to be minor issues that can be resolved with further adoption of the technology. A couple of studies have also acknowledged that their applications for QR codes could have been succeeded by automated software to capture data. This would have negated the need for QR codes in the first place. Albeit these software solutions would have been more resource-intensive [19, 23].
Patient safety concerns could arise if healthcare professionals were using QR codes to access guidelines that were either out of date, no longer in use or had been moved from their original online location, as alluded to by Upton et al. . This can be avoided be ensuring that any QR codes generated are dynamic rather than static. Dynamic codes (usually only available with a website subscription) allow the linked resource to be changed without the need to replace the original QR code. Static codes, however, require a new code to be generated if the location or nature of the resource changes. In addition, the more information encoded in a static code, the more complex the code appears, which can impede scanning success. However, the one advantage of using a static QR code is related to the fact that they contain all information within the code itself. Therefore, they can work effectively in areas of poor network connection. If dynamic QR codes are used to provide access to guidelines, it is imperative that responsibility is taken by the institution to ensure the links are kept up to date.
Although, some students or staff may have a lack of familiarity with QR codes, own a smartphone that can download a QR code reader, or own a smartphone at all, this is likely to change moving forwards. In 2018, 78% of the UK adult population owned a smartphone, up from 17% a decade earlier . The millennial generation are also establishing themselves in the healthcare environment with more competence and self-sufficiency with technology than their predecessors. Nonetheless, before smartphones become ubiquitous, it may lead to challenges by disadvantaging students and staff from certain socio-economic backgrounds and therefore affect their subsequent attainment.
Literature surrounding the use of QR codes in healthcare education is still relatively scarce, however, the body of evidence is growing rapidly. The majority of articles included in this review use qualitative student perceptions rather than quantifiable data from questionnaires. Although this can limit subsequent analysis, it is a reasonable outcome to measure for gaining initial perceptions. In addition, a majority of the articles are from Western countries or countries with more developed healthcare systems. This therefore raises the question of whether findings are generalisable to other areas of the world. Similarly, the majority of articles focus on the use of QR codes for nursing students or staff, raising the question of whether findings are applicable to other members of a multidisciplinary healthcare team. Despite these limitations, the overall perceptions and challenges encountered from each included article are congruent to one another.
In the healthcare sector, we are generally slower at embracing innovation and new technologies compared to other industries. This is sometimes rightly so, due to concerns around confidentiality, infrastructure, equality of access, patient safety and ethics, amongst other considerations. However, as with any other innovation, the uptake of QR code technology will depend on demonstrating effective benefit for patients and professionals along with a background change in social norms. Improvements in network infrastructure across healthcare institutions is also required to allow for more effective adoption. We need to be mindful, however, that not every facet of healthcare education requires a technological solution. There may be some instances or environments where using smart devices is less beneficial. Nonetheless, QR codes provide an exciting opportunity to excite and engage learners in ways we have not been able to, thus far. Potential uses are still being explored and benefits have already been demonstrated in a select number of use-cases. Table 3 summarises the author’s top tips from the review for using QR codes effectively in healthcare education.
Further work should focus on feasibility studies related to the use of QR codes in clinical environments and the perceptions of patients towards their use. Guidelines for protecting patients, trainees and staff also needs to be considered. Further studies investigating whether the use of this technology can have a significant positive impact on student performance would also be beneficial.
Availability of data and materials
All data generated or analysed during this study are included in this published article and its references.
Cumulative index to nursing and allied health literature
Health business elite
Healthcare management information consortium
Medical subject headings
Preferred reporting items for systematic reviews and meta-analyses
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The authors wish to thank Pip Divall, clinical librarian at the University Hospitals of Leicester NHS Trust, for assistance with the development of search terms.
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Karia, C.T., Hughes, A. & Carr, S. Uses of quick response codes in healthcare education: a scoping review. BMC Med Educ 19, 456 (2019). https://doi.org/10.1186/s12909-019-1876-4
- Quick response codes
- Technology enhanced learning