Prolactin

Analyte [material]

Prolactin [S/P]

Reference range, target level, or decision threshold

<1.1 ng/mL (25 microg/L) (depending on the method)

Interpretation of results

↑ Pituitary adenoma (prolactinoma), functional hyperprolactinemia, primary hypothyroidism, drugs (eg, metoclopramide, estrogens)

↓ Hypopituitarism