Free Progesterone

Test Code: TD_4110

CPT Code(s): 83519

Test Details

Alternative Name(s)

N/A

Test Includes

Free Progesterone

Methodology

Radioimmunoassay (RIA)

Rejection Criteria

Hemolysis
Lipemia

Reference Range(s)

By report

Specimen Requirements

Preferred Specimen

Serum separator tube

Minimum Volume

2 mL serum or plasma

Sample Stability

1 day room temperature
1 week refrigerated
3 months frozen

Transport Temperature

Frozen

Collection Instructions

Allow SST to clot in an upright position for at least 30 minutes, then centrifuge sample within 2 hours of collection. Transfer serum to a plastic transport tube. Clearly label tube as serum. Freeze.
When multiple tests are ordered, submit separate tube for this test.
Note: Patient should not have ingested acth, corticosteroid, estrogen, or gonadotropin medication for at least 48 hours prior to collection.

Alternative Specimen

3 mL serum from a plain red top tube. Allow sample to clot in an upright position for at least 60 minutes, then centrifuge sample and transfer serum to a plastic transport tube within 2 hours of collection. Clearly label tube as serum from a plain red top tube. Freeze. When multiple tests are ordered, submit separate tube for this test.

3 mL EDTA (lavender top) plasma. Centrifuge sample and separate plasma from cells immediately. Transfer plasma to a plastic transport tube. Clearly label tube as EDTA plasma. Freeze. When multiple tests are ordered, submit separate tube for this test.