The alpha subunit is a common protein structure to LH, FSH, TSH and hCG. These hormones are comprised of identical alpha subunits and unique beta subunits that confer biological specificity. Alpha subunit test is useful in the diagnosis and management of various pituitary, placental, pancreatic and hCG-producing tumors.
Frozen (preferred) - 200 days
Refrigerated - 1 day
Ambient - 1 day
Immunocheminliminometric assay (ICMA)
Age and gender dependent - see report