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ABSTRACT: Objective
A rapid molecular diagnostic test (RMDT) offers a fast and accurate detection of respiratory viruses, but its impact on the timeliness of care in the emergency department (ED) may depend on the timing of the test. The aim of the study was to determine if the timing of respiratory virus testing using a RMDT in the ED had an association with patient care outcomes.Design
Retrospective observational study.Setting
Linked ED and laboratory data from six EDs in New South Wales, Australia.Participants
Adult patients presenting to EDs during the 2017 influenza season and tested for respiratory viruses using a RMDT. The timing of respiratory virus testing was defined as the time from a patient's ED arrival to time of sample receipt at the hospital laboratory.Outcome measures
ED length of stay (LOS), >4?hour ED LOS and having a pending RMDT result at ED disposition.Results
A total of 2168 patients were included. The median timing of respiratory virus testing was 224?min (IQR, 133-349). Every 30?min increase in the timing of respiratory virus testing was associated with a 24.0?min increase in the median ED LOS (95% CI, 21.8-26.1; p<0.001), a 51% increase in the likelihood of staying >4?hours in ED (OR, 1.51; 95%?CI, 1.41 to 1.63; p<0.001) and a 4% increase in the likelihood of having a pending RMDT result at ED disposition (OR, 1.04; 95%?CI, 1.02 to 1.05; p<0.001) after adjustment for confounders.Conclusion
The timing of respiratory virus molecular testing in EDs was significantly associated with a range of outcome indicators. Results suggest the potential to maximise the benefits of RMDT by introducing an early diagnostic protocol such as triage-initiated testing.
SUBMITTER: Wabe N
PROVIDER: S-EPMC6701571 | biostudies-literature | 2019 Aug
REPOSITORIES: biostudies-literature
Wabe Nasir N Li Ling L Dahm Maria R MR Lindeman Robert R Yimsung Ruth R Clezy Kate K Thomas Judith J Varndell Wayne W Westbrook Johanna J Georgiou Andrew A
BMJ open 20190808 8
<h4>Objective</h4>A rapid molecular diagnostic test (RMDT) offers a fast and accurate detection of respiratory viruses, but its impact on the timeliness of care in the emergency department (ED) may depend on the timing of the test. The aim of the study was to determine if the timing of respiratory virus testing using a RMDT in the ED had an association with patient care outcomes.<h4>Design</h4>Retrospective observational study.<h4>Setting</h4>Linked ED and laboratory data from six EDs in New Sou ...[more]