The QuickVue One-Step hCG Combo test is a sensitive immunoassay for the qualitative detection of human chorionic gonadotropin (hCG) in serum or urine for the early detection of pregnancy. This exciting new test employs state of the art manufacturing techniques, resulting in a higher clarity, easy to read test you can depend on. The new QuickVue One-Step hCG Combo has a new 25 mIU/mL sensitivity in both urine and serum.