QuickVue One-Step hCG Combo Test, 50 tests per Box. This sensitive immunoassay test for the qualitative detection of human chorionic gonadotropin (hCG) in serum or urine for the early detection of pregnancy has a 25mIU/mL sensitivity in both urine and serum. It employs state-of-the-art manufacturing techniques resulting in a higher clarity, easy-to-read test. 50 tests per kit.