How COVID-19 Highlights the Uncertainty of Medical Testing
December 1, 2020
(Kaiser Health News) – National COVID test shortages have emphasized testing’s critical role in containing and mitigating the pandemic, but these inconvenient truths remain: A test result is rarely a definitive answer, but instead a single clue at one point in time, to be appraised alongside other clues like symptoms and exposure to those with confirmed cases. The result itself may be falsely positive or negative, or may show an abnormality that doesn’t matter. And even an accurate, meaningful test result is useless (or worse) unless it’s acted on appropriately. These lessons are not unique to COVID-19.