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Test Description
A prolactin, serum test measures the level of prolactin in the blood. Prolactin is a hormone produced by the pituitary gland that is responsible for lactation, breast development, and hundreds of other actions needed to maintain homeostasis.
Indications of the Test
This test is used to diagnose and monitor conditions related to prolactin levels, such as pituitary tumors, infertility, and irregular menstrual periods.
Patient Preparation/Instructions
No special preparation is necessary for this test.
Typical Reference Values
The normal values for prolactin are:
- Men: less than 20 ng/mL (425 µg/L)
- Nonpregnant women: less than 25 ng/mL (25 µg/L)
- Pregnant women: 80 to 400 ng/mL (80 to 400 µg/L)
Turnaround Time
The turnaround time for this test is typically 1-2 days.
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