(25 Tests) The Instant-View Pregnancy Combo (Urine/Serum) Test Cassette, is a qualitative immunoassay for the detection of human chorionic gonadotropin (hCG) in human urine or serum for the early detection of pregnancy. FDA Cleared and CLIA Waived for urine. Moderately Complex for use with serum. (FDA 510K#: K984077)