We continue to receive multiple calls daily to re-test patients for SARS CoV2 infection, despite negative tests within the previous 24-48 hours. Medical teams are falling victim to the clinical diagnostic errors of anchoring and availability, both neat explored in this NEJM perspective.
We recently published our experience with retesting hospitalized patients with a negative initial SARS-CoV2 test, available here. Our findings suggest that SARS-CoV2 conversion from negative to positive is uncommon.
We must remember to reason, to be aware of our diagnostic reasoning biases.
