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. The QuickVue+ One-Step hCG Combo test uses a monoclonal antibody specific to the beta subunit of hCG in a single-step technology to accurately detect hCG.