A diagnostic COVID-19 test is described as detecting nearly all individuals who truly have the disease. Which value best represents the sensitivity of such a test?

Sensitivity is the ability of a test to correctly identify people who have the disease (true-positive rate). The item key indicates a high-sensitivity screening test at 95%.Other options: 80% and 90% would represent comparatively poorer detection of true cases. 99% is typically quoted for specificity of confirmatory testing rather than the sensitivity referenced here.Key exam takeaway: Sensitivity = detects the disease in those who have it (rules out when negative, SnNOut). Specificity = identifies those without it.