Prolactin is a topic covered in the Davis's Lab & Diagnostic Tests.

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Luteotropic hormone, lactogenic hormone, lactogen, HPRL, PRL.

Common Use:
To assess for lactation disorders and identify the presence of prolactin-secreting tumors to assist in diagnosing disorders such as lactation failure.

Serum collected in a gold-, red-, or red/gray-top tube. Specimen should be transported tightly capped and in an ice slurry.

Normal Findings:
(Method: Immunoassay)

AgeConventional UnitsSI Units (Conventional Units × 1)
Prepubertal males and females3.2–20 ng/mL3.2–20 mcg/L
Adult males4–23 ng/mL4–23 mcg/L
Adult females4–30 ng/mL4–30 mcg/L
 Pregnant5.3–215.3 ng/mL5.3–215.3 mcg/L
Postmenopausal2.4–24 ng/mL2.4–24 mcg/L

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