|Print View Attached Docs:|
|80470:ALPHA-SUBUNIT OF PITUITARY GLYCOPROTEIN HORMONES, SERUM|
|Alias Names:||Alpha-PGH / Alpha-PCG / Human Chorionic Gonadotropin (hCG) / Soft-APGH / CG|
|Released:||48 hours after setup at PeaceHealth Laboratories’ reference lab|
|Specimen Collection Details|
|Collection:||One 7.5 mL serum separator tube (SST).|
|Handling:||Allow to clot, centrifuge and separate serum into a plastic vial. Freeze. Refrigerated specimens are acceptable if they arrive at reference lab within 72 hours of collection.|
|Standard Volume:||1 mL serum|
|Minimum Volume:||0.5 mL serum|
|Transport:||Frozen on dry ice.|
|Comments:||Useful in the diagnosis of pituitary tumors, follow-up treatment of pituitary tumor patients, differential diagnosis of TSH-secreting pituitary tumor versus thyroid hormone resistance, or CDP versus HH.
The alpha-subunit of pituitary glycoprotein hormone assay has been called the alpha-human chorionic gonadotropin (hCG) assay. However, the assay measures the alpha-subunit of thyroid-stimulating hormone, in addition to that of hCG. Quantitating the alpha-subunit has been advocated as a monitoring test to detect the recurrence of tumors in patients who have undergone resection of pituitary adenomas.
|Rejection Criteria:||Specimen not frozen within 72 hours of collection; gross hemolysis; plasma.|