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This may be the author’s version of a work that was submitted/accepted for publication in the following source: Georgiou, Andrew, McCaughey, Euan, Tariq, Amina, Walter, Scott, Li, Julie, Callen, Joanne, Paoloni, Richard, Runciman, William, & Westbrook, Johanna (2017) What is the impact of an electronic test result acknowledgement system on Emergency Department physicians’ work processes? A mixed-method pre-post observational study. International Journal of Medical Informatics, 99, pp. 29-36. This file was downloaded from: https://eprints.qut.edu.au/102740/ c Consult author(s) regarding copyright matters This work is covered by copyright. Unless the document is being made available under a Creative Commons Licence, you must assume that re-use is limited to personal use and that permission from the copyright owner must be obtained for all other uses. If the docu- ment is available under a Creative Commons License (or other specified license) then refer to the Licence for details of permitted re-use. It is a condition of access that users recog- nise and abide by the legal requirements associated with these rights. If you believe that this work infringes copyright please provide details by email to [email protected] Notice: Please note that this document may not be the Version of Record (i.e. published version) of the work. Author manuscript versions (as Sub- mitted for peer review or as Accepted for publication after peer review) can be identified by an absence of publisher branding and/or typeset appear- ance. If there is any doubt, please refer to the published source. https://doi.org/10.1016/j.ijmedinf.2016.12.006

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Page 1: c Consult author(s) regarding copyright matters · 2020-04-25 · Professor Andrew Georgiou Centre for Health Systems and Safety Research, Australian Institute of Health Innovation

This may be the author’s version of a work that was submitted/acceptedfor publication in the following source:

Georgiou, Andrew, McCaughey, Euan, Tariq, Amina, Walter, Scott, Li,Julie, Callen, Joanne, Paoloni, Richard, Runciman, William, & Westbrook,Johanna(2017)What is the impact of an electronic test result acknowledgement systemon Emergency Department physicians’ work processes? A mixed-methodpre-post observational study.International Journal of Medical Informatics, 99, pp. 29-36.

This file was downloaded from: https://eprints.qut.edu.au/102740/

c© Consult author(s) regarding copyright matters

This work is covered by copyright. Unless the document is being made available under aCreative Commons Licence, you must assume that re-use is limited to personal use andthat permission from the copyright owner must be obtained for all other uses. If the docu-ment is available under a Creative Commons License (or other specified license) then referto the Licence for details of permitted re-use. It is a condition of access that users recog-nise and abide by the legal requirements associated with these rights. If you believe thatthis work infringes copyright please provide details by email to [email protected]

Notice: Please note that this document may not be the Version of Record(i.e. published version) of the work. Author manuscript versions (as Sub-mitted for peer review or as Accepted for publication after peer review) canbe identified by an absence of publisher branding and/or typeset appear-ance. If there is any doubt, please refer to the published source.

https://doi.org/10.1016/j.ijmedinf.2016.12.006

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What is the impact of an electronic test result acknowledgement system on Emergency

Department physicians’ work processes? A mixed-method pre-post observational study

Andrew Georgiou a, Euan J McCaughey a, Amina Tariq a,b, Scott R Walter a, Julie Li a, Callen

Joanne Callen a, Richard c,d, William B Runciman e-h, Johanna I Westbrook a

a Centre for Health Systems and Safety Research, Australian Institute of Health Innovation,

Macquarie University, Sydney, Australia

b School of Public Health and Social Work, Faculty of Health, Queensland University of

Technology, Brisbane, Australia

c Emergency Department, Concord Repatriation General Hospital, Sydney, Australia

d Sydney Medical School, The University of Sydney, Sydney, Australia

e Centre for Population Health Research, School of Health Sciences, The University of South

Australia, Adelaide, Australia

f Visiting Professor - Macquarie University, Sydney, Australia

g Clinical Professor - The Joanna Briggs Institute, Department of Anaesthesia and Intensive

Care, University of Adelaide, Adelaide, Australia

h Australian Patient Safety Foundation, Adelaide, Australia

Correspondence to

Professor Andrew Georgiou

Centre for Health Systems and Safety Research, Australian Institute of Health Innovation

6/75 Talavera Road

Macquarie University NSW Australia

Tel: +61 2 9850 2424

Email: [email protected]

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ABSTRACT

Objective: To examine the impact of an electronic Results Acknowledgement (eRA) system

on emergency physicians’ test result management work processes and the time taken to

acknowledge microbiology and radiology test results for patients discharged from an

Emergency Department (ED).

Methods: The impact of the eRA system was assessed in an Australian ED using: a) semi-

structured interviews with senior emergency physicians; and b) a time and motion direct

observational study of senior emergency physicians completing test acknowledgment pre and

post the implementation of the eRA system.

Results: The eRA system led to changes in the way results and actions were collated, stored,

documented and communicated. Although there was a non-significant increase in the average

time taken to acknowledge results in the post period, most types of acknowledgements (other

than simple acknowledgements) took less time to complete. The number of acknowledgements

where physicians sought additional information from the Electronic Medical Record (EMR)

rose from 12% pre to 20% post implementation of eRA.

Conclusions: Given that the type of results are unlikely to have changed significantly across

the pre and post implementation periods, the increase in the time physicians spent accessing

additional clinical information in the post period likely reflects the greater access to clinical

information provided by the integrated electronic system. Easier access to clinical information

may improve clinical decision making and enhance the quality of patient care. For instance, in

situations where a senior clinician, not initially involved in the care process, is required to deal

with the follow-up of non-normal results.

Keywords: information systems; test result follow-up; laboratory; medical imaging;

emergency department

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1. INTRODUCTION

The usability of health information technology (IT) systems is a key factor affecting the ability

of health IT to contribute to the delivery of safe, high quality health care [1]. Numerous health

IT applications across healthcare systems globally have been developed to support test result

management processes, including systems that can track pending test results at hospital

discharge [5], deliver result notifications to clinicians [6] and utilise tracking systems to

document test result acknowledgement and subsequent clinical actions [6]. Nevertheless,

research continues to point to challenges associated with the use of electronic test result

management systems [7]. These include problems related to the potential for information

overload [8], negative effects on the efficiency of work processes [9, 10] and challenges in

establishing appropriate escalation procedures to ensure test result follow-up [11].

Inefficiencies are often related to the time taken to use computers and the complexity of

computer tasks [10, 13]. It is therefore necessary to ensure that electronic test result

management systems are developed to complement existing clinical work processes [14]. The

aim of this study was to examine the impact of the introduction of an electronic results

acknowledgement (eRA) system on emergency physicians’ work processes and the time taken

to manage microbiology and radiology test results for patients discharged directly from an ED.

2. MATERIAL AND METHODS

2.1 Setting

The study was conducted in the ED of a 550-bed metropolitan teaching hospital in Sydney,

Australia. The ED manages over 34,000 patient attendances per annum. Test result

acknowledgements for all radiology and microbiology results for patients discharged from the

ED are managed daily from Monday-Friday by emergency physicians who perform one

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administrative shift per week on a rotating roster. During this time they review and

acknowledge all radiology and microbiology results received since the conclusion of the

previous administrative shift. Prior to August 2013, paper copies of radiology and

microbiology results were reviewed and acknowledged by the emergency physician on

administrative duty using a date stamp and signature on the hard copy report, or in a patient’s

medical record [15]. An eRA system (Message Centre, Cerner Millennium, MO, USA) was

implemented as an additional module to the existing EMR system, and replaced the manual

eRA process in August 2013.

2.2 Intervention

The Cerner Millennium Message Centre is an electronic inpatient and outpatient workflow

management module which comprises an Inbox containing documents and notifications

requiring review, attention, or signature, including test result reports. Results of all

microbiology and radiology tests ordered from the ED arrive electronically in the Inbox, and

can be viewed by all authorised ED physicians through their personal account. Available

results are displayed as a list of electronic reports, which may be sorted by a range of

parameters including date, test type (microbiology or radiology), result status if flagged

(normal, abnormal, critical) and whether the patient was admitted or discharged from the ED.

Message Centre can be accessed from any computer in the hospital via the Cerner Millennium

network, or remotely if clinicians have obtained secure access software for their computer or

other device.

2.3 Study Design

The impact of the eRA system, including effects on physician test acknowledgement work

processes, and the amount of time taken to acknowledge results was assessed pre and post

implementation of the eRA system using mixed methods comprising qualitative semi-

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structured interviews with all emergency physicians involved in the test acknowledgement

process, and direct observation of emergency physicians undertaking the result

acknowledgment process.

2.3.1 Semi-structured interviews

Semi-structured, in-depth interviews relating to physician test acknowledgement work

processes pre and post eRA implementation were conducted with emergency physicians (n=12)

by two researchers (JC and JL) between December 2013 and April 2014. Audio recordings

were made of interviews during which physicians were asked to describe their result

acknowledgement work process pre and post eRA implementation (interview guide in

Appendix A). Participants were recruited following an email disseminated by the Director of

the Department and were selected purposively based on their use of the eRA system and

responsibility for test result acknowledgement.

2.3.2 Observation sessions

Researchers were provided with a roster and contacted each participant ahead of their

scheduled administration shift to arrange a time to undertake observation. All participants

provided written consent. A subset of seven emergency physicians were recruited purposively

for direct observation based on their availability during the data collection periods. Five

physicians participated in the pre-eRA data collection phase and six physicians were observed

during the post-eRA data collection phase; four physicians were observed in both the pre and

post intervention phases. Each participant took part in one pilot session, followed by two

observation sessions in either the pre or post eRA phase, totalling 10 observations sessions pre-

and 12 sessions post-eRA.

The Work Observation Method by Activity Timing (WOMBAT) method was utilised to

conduct a direct observational time and motion study of physicians performing their test result

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acknowledgement process pre and post eRA. The WOMBAT tool is a validated data collection

software that is adaptable to different study settings [16-18]. The WOMBAT data collection

template was modified for the purposes of this study and finalised during pilot sessions in the

pre-eRA data collection phase. Using a tablet computer, observers collected information about

specific work tasks performed by the emergency physician (e.g., endorsing either radiology or

microbiology reports), any additional information physicians required if the report warranted

further investigation (e.g., an abnormal result may require review of past results in the patient’s

electronic health record to determine its clinical significance), actions taken and subsequent

communication (e.g., contacting the patient or the patient’s GP if the result was clinically

significant), what documentation resulted due to the action taken (e.g., documentation in the

patient notes), and who the doctor undertook this task with (if anyone) or if they used an

artefact such as a telephone to undertake the task. Figure 1 provides a screenshot of the data

collection tool. Detailed definitions for tasks reported in this paper are available in Appendix

B.

Each process of test acknowledgement began in the pre-eRA phase with the physician

beginning to review individual reports from the paper test result reports collected from the

dedicated fax/printer through which the radiology and microbiology departments transmitted

result reports. Conclusion of the acknowledgement process was defined as the moment the

physician placed an individually reviewed report into a designated tray for filing into the

medical record. In the post eRA phase, the test acknowledgement process was defined as the

period of time between the physician clicking open an electronic result report from the list in

their Message Centre account, to when the same report is “clicked off” (electronically

acknowledged by the click of a specific button), and the physician was taken back to the list

view. Items under the Documentation section of the tool was modified in the post phase of the

study to reflect the electronic locations for documenting follow up action or notes in the

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electronic test result endorsement system. Pre eRA sessions took place between 21 May and 17

June 2013 and post eRA sessions between 24 June and 21 August 2014, with the duration of

each session determined by how long each participant took to endorse the results that they had

been allocated for that shift (from 2 minutes to 70 minutes). As information was entered into

the WOMBAT tool, all tasks were automatically time-stamped, including interruptions and

tasks conducted in parallel (multi-tasking).

Figure 1 Work Observation Method by Activity Timing (WOMBAT) data collection tool.

2.4 Analysis

All interviews were recorded and transcribed. Information obtained during interviews was used

to facilitate the development of process models of the acknowledgement process pre and post

eRA. An activity diagram modelling approach using Business Process Model and Notation

Refers to the type of report the observed doctor is reviewing, or other activities that may take place during the results review 

period

To record sources of additional information required for abnormal reports. Multiple sources of information may be selected.

Refers to the action the observed doctor takes after reviewing a report

Documentation completed by the observed doctor to signify that the review process has been completed

Used to specify other individuals with whom certain tasks may have taken place 

Replaced by “Reminder Function” button in the POST data collection phase as the Red Folder is no longer used after eRA implementation

Drop down menus in some categories contain further options

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(BPMN) [19] was used to develop these models. The models were shared with the study

participants, providing an opportunity for feedback and validation of the findings.

Linear regression was used to assess the change in test acknowledgement time pre and post

eRA for test results relating to patients not admitted to wards at the time of acknowledgement.

The times were log-transformed so that they were approximately normally distributed.

Microbiology and radiology acknowledgements were modelled separately. In addition, the

models allowed for differential changes in acknowledgement time depending on the type of

acknowledgement and were also adjusted for interruption and multitasking status, day of week

and time of day. A random intercepts approach was used to account for correlation within

individual participants and to provide a subject-specific estimate of the change in

acknowledgement time. All analyses were performed using SAS (version 9.4, SAS Institute,

North Carolina, USA).

2.5 Ethics approval

The study was approved by the ethics committee of the hospital. Each participant provided

written informed consent.

3 RESULTS

3.1 Test Acknowledgement- Pre and Post Workflow Analysis

Test result acknowledgement work processes pre and post eRA are represented in Figure 2 and

Figure 3, respectively.

3.1.1 Pre eRA Workflow

Results of all radiology and microbiology tests ordered through the ED were faxed through to a

dedicated fax machine located within the ED. Results were received as soon as they were

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authorised/finalised, and picked up daily by the emergency physician on administrative duty.

Results for admitted patients could be either reviewed or disregarded and culled (shredded).

Normal reports for all patients would be initialled, date stamped and sent for filing in the paper

medical record, whereas abnormal results (if reviewed) for patients who had been admitted

were communicated to the admitting team by telephone.

Documentation practices on actions taken for abnormal results for patients discharged from the

ED varied between physicians. These included documentation in a dedicated “Results Book”

(microbiology results only) kept in the office where administrative duties took place,

documentation in the paper medical record and/or added to the electronic discharge summary

on the patient’s electronic medical record. Other evidence of subsequent action may also have

been filed in the medical record (e.g., confirmation of a result faxed to a patient’s GP).

Abnormal results may not require action in cases where doctors ascertained through record

review that appropriate action had been taken prior to patient discharge (e.g., patient had been

commenced on appropriate antibiotics for a urinary tract infection based on clinical symptoms),

or if results were not clinically significant. Follow-up actions for abnormal results that could

not be completed were handed over to the next emergency physician on administrative duty in

the form of written notes attached to paper result reports. Result acknowledgement usually

occurred during scheduled administrative days (Monday – Friday), but occasionally took place

during clinical shifts of low activity on weekends to reduce administrative workload for the

following Monday.

3.1.2 Post eRA Workflow

All results are emailed to an electronic Message Centre, in the Cerner system which physicians

accessed during their administrative days. The Message Centre allows lists to be re-sorted by a

number of fields, including discharge status. Some physicians reported clearing admitted

patients by individually opening and endorsing all results for these patients (because the results

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are expected to be accessed by the treating ward physician as inpatients), and others continue to

take note of critical results, while some physicians focussed only on results relating to

discharged patients. Normal results were endorsed electronically by the click of a relevant

button, with the result then being removed from the available list. Abnormal results were

endorsed (“clicked off”) after the relevant follow-up action was completed and documented in

a Reminder email which posts to the Results flow-sheet of the electronic medical record.

Handover information to other physicians in instances where follow-up action was not finalised

during a particular shift were documented in the Comment field of the electronic report. The

result was consequently unacknowledged, and remained in the list for the following physician.

While result acknowledgement usually occurred during scheduled administrative days

(Monday - Friday), physicians stated that compared to the manual system, they were more

likely to access the electronic system to endorse results outside of scheduled administrative

days due to ease of access (being able to endorse results from any computer in the clinical area)

and convenience of electronic results viewing (compared to the manual system, which relied on

manual sorting and filing, the electronic system can be easily left at any point and re-started

when time allows).

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Figure 2 Process map detailing workflow for test result acknowledgment pre implementation on an electronic results acknowledgment system.

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Figure 3 Process map detailing workflow for test result acknowledgment post implementation on an electronic results acknowledgment system.

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3.2 Test Acknowledgement Process - Pre and Post Timing Observations

The number of individual acknowledgements and the total time for which each participant was

observed is shown in Table 1.

Table 1 Emergency physicians’ characteristics, total time for which they were observed and

the number of individual acknowledgements during this time. Participants were observed

during two sessions both pre and post implementation of an eRA system.

Pre Post

Physician

ID

Total Time

Observed

(min:sec)

Number of

Acknowledgements

Total Time

Observed

(min:sec)

Number of

Acknowledgements

1 10:21 60 57:02 190

2 38:53 73 77:41 163

3 83:29 169 73:42 136

4 80:13 43 101:00 60

5 60:44 113

6

87:12 120

7

89:05 116

Total 273:40 458 485:42 785

Four hundred and fifty-eight individual test acknowledgements were observed pre eRA and

785 observed post (Table 1). Four main types of test acknowledgement processes arose from

the data. Firstly, simple acknowledgements (stamp and sign pre eRA or click “OK” post)

where the physician reviewed and acknowledged reports with no reference to further

information or actions to contact the patient or GP. Secondly, more complex cases where

physicians referred to the EMR for further information before acknowledging the report.

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Thirdly, cases where the physician referred to other information sources (information from

local intranet, internet, paper record, asking colleague) before acknowledging result reports,

and fourthly instances when contact with patient or GP was performed prior to

acknowledgement. Individual acknowledgements that required two different types of action

(e.g., other information required and GP contact) were included in both categories.

The majority of acknowledgements were radiology test results (58% post, 89% post) and

classified as simple (84% pre, 77% post) (Table 2). The percentage of acknowledgements for

which additional information was sought from the EMR was higher in the post phase (20%)

compared to the pre phase (12%).

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Table 2 Test acknowledgement time pre and post implementation of an electronic results

acknowledgement system.

Result type Acknowledgement type Number of

Acknowledgements

Time per

Acknowledgement

Change in

Acknowledgement time

(Pre vs. Post)

Pre Post Mean

ratio

Pre (sec) Post (sec) 95% CI p-value

Microbiology Simple (Stamp and sign/Click

'OK')

158 70 1.70 5.42 9.21 1.15, 2.51 0.01*

Additional information

required from EMR

27 17 0.87 81.47 71.08 0.52, 1.49 0.62

Other additional information

required

0 1 - - - - -

Contact with patient or GP

required

12 1 1.24 21.65 26.95 0.27, 5.82 0.78

Radiology Simple (Stamp and sign/Click

'OK')

233 546 1.29 5.73 7.37 1.03, 1.61 0.03*

Additional information

required from EMR

28 140 0.84 49.45 41.64 0.62, 1.14 0.27

Other additional information

required

6 12 0.91 18.76 17.04 0.48, 1.73 0.77

Contact with patient or GP

required

2 15 0.39 18.07 7.05 0.14, 1.06 0.07

EMR= Electronic Medical Record; *p<0.05. Acknowledgments that required two actions are registered in both categories.

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There was a borderline significant 46% increase overall in acknowledgement time for

microbiology test results (95% CI 0.99, 2.17; p=0.06) and a non-significant 10% increase for

radiology test results (95% CI 0.87, 1.39; p=0.41) post eRA. These increases were driven by

simple acknowledgements (the most frequent type) taking significantly longer on average with

the eRA. In contrast, many of the less frequent acknowledgement types showed a non-

significant decrease in acknowledgement time after introduction of the eRA (see Table 2). It is

also important to note that physician documentation of follow-up actions for abnormal test

results in the paper medical record in the pre-period may not have been captured if the record

was requested from another location in the hospital and arrived outside of observation time

frames.

A crude overall comparison indicated a significant difference in acknowledgement times

between participants (F=20.9, p<0.01). When taking into account test type, type of

acknowledgement, presence of interruption or multitasking, time of day and day of week, the

estimated mean acknowledgement times became more homogeneous between individuals, but

the differences were still significant. Acknowledgment of radiology results took significantly

longer (p<0.01) if the clinician was either interrupted or multitasking, however there was no

evidence these factors affected microbiology results. For day of the week and time of day no

significant effect was observed for either type of result.

4 DISCUSSION

This study employed both qualitative and quantitative methods to examine the impact of a new

eRA system on the work processes of senior emergency physicians involved in the

management of microbiology and radiology test results for patients discharged from the ED.

The qualitative findings revealed that the eRA system led to changes in the way that results

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were collated, stored, documented and communicated, with important implications for patient

safety. The addition of the Comment field and Reminder email functionality centralised

documentation in the EMR and minimised the risk of results not being followed up. All

returned test results were stored in the eRA system where they remained until physician

acknowledgement took place. This ensured all test results were reviewed and signed off in a

timely manner and facilitates escalation procedures for unactioned results.

The increase in the amount of time spent using the eRA system to access additional clinical

information likely reflects the greater accessibility of this information in an integrated

electronic system. The increased contextualisation of these results provided by greater access

to clinical information during the test result endorsement process may improve the quality of

the decision-making process, particularly in cases where the senior clinician may not have been

initially involved in the clinical care of the patient. The new system also improved the

consistency of practice between physicians, particularly in the way abnormal results were

documented for discharged patients.

In terms of efficiency, although there was a non-significant increase in the average time taken

to acknowledge results in the post- period, most types of acknowledgements other than the

simple type took less time to complete. The main driver of the overall relative increase in

acknowledgement time was the increase in the time taken for simple acknowledgements.

However, in absolute terms this change was of the order of two to four seconds per

acknowledgement on average. This is a comparable duration to the screen loading time for

each result in the eRA and could potentially be mitigated by improved computer processing

speed. Within the previous paper-based system, ED physicians were required to collect and

manually identify reports for discharged patients, this could be completed with greater

efficiency with the click of a button in the new eRA Message Centre. The eRA system also

eliminated the need for administrative staff to file print outs in the paper record following each

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acknowledgement session. Despite changes in time taken to complete acknowledgements,

physicians did not indicate a perceived loss of efficiency.

The findings from this study address a major problem related to accounting for test results that

are still pending at patient discharge [20]. Very few hospitals have managed to utilise health IT

systems for managing this problem, and physicians are generally expected to sift through

discharge summaries, rely on direct communication, or use other local strategies or individual

approaches to gather the information they need [20]. In 2005 Roy et al. reported the results of a

cross-sectional study using 2644 consecutive patients across two US tertiary care academic

hospitals, showing that 41% of patients left the hospital before all test results were reported,

and that 9.4% of these results have required further action [21].

Test result follow-up processes can vary widely between sites, even when the sites share a

common EMR [22]. For instance, Laxmisan et al.’s examination of an EMR-based intervention

across two US Veterans Health Administration sites in 2007 identified differences in local

processes and workflow features, which led them to conclude that health IT is likely to have an

important impact on the methods and procedures used to manage test results [23].

A cross-sectional survey of Veterans Affairs primary care practitioners in 2010 assessed the

perceptions of technological factors related to the notification software (e.g., ease-of-use,

content and computer interface) along with social factors (e.g., workflow, organisational

procedures). It found that 56% of respondents reported that notification procedures using the

EMR made it possible for test results to be missed [24]. The authors concluded that the follow-

up of test results can be a problem with or without an EMR [7]. The resolution of this issue lies

beyond just applying alerts and other technologies to transfer data [7], but in devoting careful

attempts aimed at optimising the efficiency and effectiveness of the test management process

[1].

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Safety and workflow implications from our findings are generally applicable to EDs where

eRA systems are employed, however a number of limitations exist with this study. Although

there was a small number of physicians involved in the performance of the eRA process, our

study captured all participants scheduled to perform the task during our study periods pre and

post eRA system implementation and provided the requisite number of acknowledgements

needed to make a valid statistical comparison of time taken per acknowledgement pre and post

eRA module implementation. The fact that the group of physicians pre and post were not

exactly the same compromised the accuracy of estimated change in acknowledgement time.

However, in a sensitivity analysis where the models were applied only to physicians observed

in both phases, the main estimates were comparable to the results reported above. Also, the

variation in times of day observed in the pre and post periods required explicit modelling of

temporal effects where this could have been avoided by use of consistent observation times.

However, estimates of these effects in the multivariate analyses were not significant.

5 CONCLUSION

The increase in the percentage of acknowledgements where physicians sought additional

information from the EMR suggests that the eRA system was being accessed for a broader

range of activities than was practical previously. Access to relevant clinical information can

improve the quality of the decision making process during endorsement of non-normal results

by a senior clinician who was not involved in the clinical care of that patient. Health IT has the

potential to mitigate the many complex socio-technical factors which contribute to errors in the

test follow-up process, including workflow and communication factors and the lack of

appropriate organisational mechanisms to ensure that critical and clinically significant results

are not missed or lost [25].

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Summary Table

What is already known on the topic

Electronic test result management systems can support test result management by

tracking pending test results at hospital discharge, delivering result notifications,

and electronically documenting result acknowledgement

Health IT must be designed to complement clinical workflow processes to

mitigate challenges associated with use

What is added to our knowledge

Instances where physicians sought additional clinical information during the test

result endorsement process increased significantly post system implementation

Greater accessibility to clinical information in an integrated electronic result

acknowledgement system increases contextualisation of results and improves

physician decision making during the test result endorsement process

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Authors contributions

All authors participated in the conceptualisation and drafting of the paper. All authors

contributed to the analysis or interpretation of the data. All authors read and approved the final

manuscript.

Acknowledgements

The authors would like to thank the emergency physicians who consented to be involved in the

study.

Funding

The project was funded by an Australian Research Council Discovery Project Grant

(DP120100297) and NHMRC Program Grant (APP1054146).

Conflict of interest

The authors declare no conflict of interest.

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APPENDIX A - INTERVIEW GUIDE

Results acknowledgement process before and after the implementation of the electronic results acknowledgement system

Brief introduction about study: We are exploring whether the electronic results acknowledgement system has had an impact on the number of test results not acknowledged. The focus is on microbiology and radiology. We ascertain acknowledgement as documentary evidence of the physician having seen the results (either documented in the eDRS, initial on the test report, written in progress notes). We are including only patients admitted and discharged from the ED.

Question 1

i. How were microbiology results acknowledged prior to the implementation of the electronic RA system? (detailed process of acknowledgement, who acknowledges, how, when, where documentation is done, includes microbiology (preliminary and final results), serology, histopathology and cytology etc.)

ii. How are microbiology results acknowledged now that you have an electronic RA system?

Question 2

i. How were radiology results acknowledged prior to the implementation of the electronic RA system? (includes x-rays, CT and US)

ii. How are radiology results acknowledged now you have an electronic RA system?

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APPENDIX B - DEFINITIONS OF PHYSICIAN WORK TASK CATEGORIES

What

The type of report the physician is reviewing, or other activities that may take place during the results review process

Radiology

Reports from the radiology department

Microbiology

Reports from the microbiology department

Professional Communication

Any work related discussion with another staff member

Social

Any social or personal activity or discussion (phone calls, tea/personal breaks etc)

In transit

Work related movement between tasks

Sort

Sorting of reports, i.e sorting of admitted patients from ED patients both electronically and manually

Finish

When observer automatically records a new task, not knowing that the previous acknowledgement was the final one of the session

Additional Information

To record sources of additional information required before acknowledging abnormal/borderline reports. Multiple sources of information may be selected

EHR

Information from the patient Electronic Health/Medical Record

Discharge summaries Progress notes Medication charts Other pathology results PACS

Internal Information

Internal information sources on local intranet, or in the hospital

eTG MIMS AMH CIAP Reference books in office

Google

Internet resources such as search engines and other external databases

Paper Record

Patient paper medical record

Colleague

Professional communication about a report/result with another clinician

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Action

Actions taken by the physician after reviewing a report

Contact Pt

Any attempt at contacting the patient or relative

Contact GP

Any attempt at communicating with the GP via phone or fax

Flag Report

Decision to come back to the report at a later stage

Waiting for another report Wanting to talk to another hospital doctor Waiting for additional information such as

a paper record

Documentation

Any documentation that occurs during the acknowledgement process, including acknowledgement of results

Stamp & Sign

Act of acknowledging reports. Achieved by manually signing and date-stamping, and electronically by clicking a specific button

Red Folder (PRE only)

Details of results that require follow up are manually entered into this folder in the office

Reminder Function (POST only)

Comments section in the eRA where physicians enter follow-up actions/reasons for refusal to acknowledge

Admitted Patients

Used to identify reports for patients who were admitted

PreArrival Form

Electronic form for patients being re-admitted to the ED following an abnormal result. These patients are phoned and asked to return to the ED

Doc in Pt Notes

Any form of documentation in patient’s manual/ electronic medical record

Dictation

Verbal dictation of notes into a dictaphone/voice recognition software