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Methodology: Radioimmunoassay (RIA)
Edit Date: 10/29/2010
Performed: Tuesday-Sunday
Released: 24-72 hours after setup at PeaceHealth Laboratories’ reference lab.
CPT Code: 82672-90
Specimen Collection Details
Collection: One 7.5 mL serum separator tube (SST). Also acceptable: One 4.5 mL plasma separator tube (PST)(lithium heparin).
Handling: Allow to clot, centrifuge and separate serum or plasma into a plastic vial. Refrigerate.
Stability: 48 hours ambient, 7 days refrigerated, or 2 months frozen.
Standard Volume: 3 mL serum or plasma.
Minimum Volume: 1.5 mL serum or plasma.
Transport: Refrigerated.
Comments: To evaluate ovarian estrogen producing tumor in the premenarchal and post- menopausal female, or to evaluate estrogen excess in males. Estrogen analysis may be helpful in establishing time of ovulation and optimal time for conception. Serial samples must be collected over several days to evaluate baseline and peak total estrogen levels.

PeaceHealth Laboratories