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Test Name:Alpha-Subunit Pituitary Tumor Marker
Test Number:199A
Collect:1.0 mL serum - Pln red
Peds Collect:0.4 mL serum - Pln red
Alternate Collect:1.0 mL serum - SST
1.0 mL Heparin plasma
1.0 mL EDTA plasma - Lavender
Container:Mayo Screw Cap Transfer Vial
Processing:Spin, separate and freeze
Transport/Stability:Frozen (preferred) - 90 days
Refrigerated - 7 days
Ambient - NO
Alternate Names:Alpha Subunit of Gonadotropin Hormones
Alpha Subunit (hCG, TSH, FSH, LH)
PGH
LAB199
Performing Lab:Mayo Medical Labs (APGH/9003); R-MM
Days Set Up:We
Expected TAT:1 - 7 days
Ref. Ranges:Adult M: ≤ 0.5 ng/mL

Female:
Premenopausal: ≤ 1.2 ng/mL
Post meopausal: ≤1.8 ng/mL
Collection/
Processing Details:
If SST is drawn, transfer serum to a screw cap vial prior to transport.

Useful for:
Adjunct in the diagnosis of pituitary tumors.
As part of the follow-up of treated pituitary tumor patients.
Differential diagnosis thyrotropin-secreting pituitary tumor versus thyroid hormone resistance.
Differential diagnosis of constitutional delay of puberty versus hypogonadotrophic hypogonadism
Method:Immunochemiluminescent Assay (ICA)
CPT Codes:82397
Date Created:09/26/2007
Revised Date:02/15/2017