Abbott Labs has a one-step immunoassay test (TestPack Plus) for urinary
beta hCG, which it describes as using a colloidal selenium particle
labeled with monoclonal anti-alpha-hCG.
Isn't the alpha subunit shared by LH, FSH and TSH? I thought the beta
subunit was the distinguishing moiety among these. Bill Koslosky -
koslosky at ix.netcom.com