title: Pregnancy testing. 1. Immunoassays and radioimmunoassays.
abstract: Immunoassays have virtually replaced bioassays for detection of pregnancy. Slide and tube tests are applicable in most clinical situations. Because of its sensitivity, radioimmunoassay is ideal for diagnosis of early and ectopic pregnancies.
mesh_terms: D006063:Chorionic Gonadotropin / Q000652:urine; D003951:Diagnostic Errors; D005260:Female; D006801:Humans; D007118:Immunoassay; D011247:Pregnancy; D011259:Pregnancy Tests, Immunologic; D011271:Pregnancy, Ectopic / Q000175:diagnosis; D011863:Radioimmunoassay
chemical_list: D006063:Chorionic Gonadotropin