Prolactin
A prolactin (PRL) test measures the level of prolactin in a sample of your blood. Prolactin is a hormone produced by the pituitary gland, a small gland at the base of the brain. Hormones are chemical messengers in your bloodstream that control the actions of certain cells or organs.
Source: MedlinePlus, U.S. National Library of Medicine
Normal range
- Female · 1 y – 9 y
- 2.1–17.7 ng/mL
- Female · 10 y+
- 2.8–29.2 ng/mL
- Male · 1 y – 9 y
- 2.1–17.7 ng/mL
- Male · 10 y+
- 2.1–17.7 ng/mL
Ranges from ARUP Laboratories Test Directory.
All 9 source ranges
What an abnormal result can be associated with
- A high result
- Increased circulating prolactin concentration
- A low result
- Reduced circulating prolactin concentration
Associations from LOINC2HPO (Human Phenotype Ontology). This is reference information, not a diagnosis — only a clinician can interpret your result in context.
Details
- Sample
- Serum or plasma · LOINC
- Part of
- Bryan Johnson Blueprint
- Listed under
- Female Infertility · Hormones · Pituitary Tumors
- Code
- LOINC 2842-3 · ng/mL
- Also known as
- Lactotropin, Mammotropin, Prol, PRL