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Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Int+J+Infect+Dis 2020 ; 100 (ä): 298-301 Nephropedia Template TP
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Diagnostic yield of repeat testing for SARS-CoV-2: Experience from a large health system in Los Angeles #MMPMID32835787
Adamson PC; Goodman-Meza D; Vijayan T; Yang S; Garner OB
Int J Infect Dis 2020[Nov]; 100 (ä): 298-301 PMID32835787show ga
OBJECTIVE: To determine the diagnostic yield of repeat testing for SARS-CoV-2. METHODS: A retrospective analysis was performed of all SARS-CoV-2 test results within the UCLA Health System between March 9th and April 29th, 2020. All patients with repeat test results were identified and those with discordant results were reviewed. RESULTS: Between March 9th and April 29th there were 10,165 SARS-CoV-2 test results, of which 630 (6.2%) were positive. Among the 904 patients with repeat test results, 808 (89.4%) were initially negative and 96 (10.6%) were initially positive. Among the 808 patients with an initial negative test, 15 (1.9%) subsequently tested positive. Eleven cases with an initial negative SARS-CoV-2 test and without a known prior positive SARS-CoV-2 test were reviewed; 6 were employed as healthcare workers and 10 were positive on the second test. CONCLUSIONS: We found a low diagnostic yield of repeat testing for SARS-CoV-2 in our health system. Repeat testing might prove useful in certain clinical scenarios, such as in healthcare workers, when symptoms develop after a negative test, and in hospitalized patients with a high clinical suspicion for COVID-19.