Synonym/Acronym:
follitropin, FSH.
Rationale
To distinguish primary causes of gonadal failure from secondary causes, evaluate menstrual disturbances, and assist in infertility evaluations.
Patient Preparation
There are no food, fluid, activity, or medication restrictions unless by medical direction.
Normal Findings
Method: Electrochemiluminescence Immunoassay.
| Age | Conventional Units and SI Units | |
|---|---|---|
| Neonate–5 mo | ||
| Male | 0.2–4.1 international units/L | |
| Female | 0.2–14.2 international units/L | |
| Child–17 yr | Less than 10 international units/L | |
| Adult male | 1.4–15.5 international units/L | |
| Adult female | ||
| Follicular phase | 3.5–12.5 international units/L | |
| Luteal phase | 4.7–21.5 international units/L | |
| Postmenopause | 25.8–134.8 international units/L |
Critical Findings and Potential Interventions
N/A
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