One 7.5 mL serum separator tube (SST). Also acceptable: One 5 mL red top tube.
Allow to clot, centrifuge and separate serum from cells into a plastic vial. Do not transport in gel separator tube. Refrigerate. Freeze if specimen cannot be assayed within 48 hours. Allow no more than one freeze/thaw cycle.
8 hours ambient, 48 hours refrigerated, or 3 months frozen.
0.5 mL serum
150 µL serum
Refrigerated, or frozen on dry ice.
Progesterone is a steroid hormone which plays an important role in the preparation for, and maintenance of, pregnancy.
Highly icteric specimen; specimen frozen and thawed more than once.