Free Progesterone

Understand what Free Progesterone signals

Primary unit: ng/dL
Commercial laboratory assays: 1

A progesterone test measures the level of progesterone in a sample of your blood. Progesterone is a hormone that's made mainly by the ovaries, which are two glands in the female reproductive system that contain eggs.

Compare commercial laboratory assays for Free Progesterone

Check orderable catalog codes, specimen types, fasting requirements, and demographic reference ranges across laboratories.

Progesterone, Free, With Total Progesterone, LC/MS-MS (Endocrine Sciences)

Laboratory: Labcorp
Test code: 503658
Specimen: Serum
Fasting: Not stated
Turnaround: 8 - 12 days

Laboratory assay overview

Progesterone plays an important role in the secretory transformation of the endometrium, maintenance of gestation, and relaxation of the myometrium. Progesterone is also a marker for ovulation and luteal phase of the menstrual cycle. Steroid hormones (like progesterone) circulate in the blood in protein-bound and free forms, and it is the free form that exhibits biological activity. The free form of progesterone is expected to reflect the biological activity of progesterone.

Labcorp test directory, test code 503658

Verify these ranges and sources

We compile every detail above directly from named laboratory directories and published clinical studies. Laboratories calculate standard reference intervals from the statistical distribution of tested populations for a specific assay method and demographic group, rather than setting universal optimal targets.

Always review your personal lab results with a licensed clinician, or track your lab history and health goals in Aumnivida.

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