Pharmaceuticals

Latest Kaiser Health News Stories

How COVID-19 Highlights the Uncertainty of Medical Testing

KHN Original

Widespread COVID testing has revealed uncomfortable truths about medical tests: A test result is rarely a definitive answer, but instead a single clue. A result may be falsely positive or negative, or it may show an abnormality that doesn’t matter. And as COVID testing has made too clear, even an accurate, meaningful result is useless unless it’s acted on appropriately.