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  • Test Details
  • Lab Values
  • Clinical Significance
  • Treatment Options
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Explore this test

Test Code 1122

Test Details

Follicle Stimulating Hormone (FSH)

FSH is one of the gonadotropins of the anterior pituitary gland that stimulates the growth and maturity of graafian follicles in the ovary and spermatogenesis in the testes.

Methodology

Immunoassay – Sandwich principle

Patient Preparation

None

Preferred Specimen

1.0 mL serum (0.5 mL minimum) collected in serum separator tube (SST / Tiger Top)

Alternate Specimen

None

Transport Temperature

Refrigerated (ship on frozen cold packs)

Stability

Refrigerated: 14 days

Lab Values

Lab Values

Follicle Stimulating Hormone (FSH)

Men:

Optimal

Sex/Phase mIU/mL
N/A 1.5 – 12.4

Women:

Optimal

Sex/Phase mIU/mL
Follicular phase 3.5 – 12.5
Ovulation phase 4.7 – 21.5
Luteal phase 1.7 – 7.7
Postmenopause 25.8 – 134.8
Test Details
Clinical Significance

Clinical Significance

Follicle Stimulating Hormone (FSH)

  • FSH is used to assess for dysfunctions within the hypothalamic-pituitary-gonadal system1-4
  • FSH in conjunction with LH is used for the following indications:1-4
    • Menopausal syndrome
    • Polycystic ovarian syndrome (PCOS)
    • Testosterone deficiency
    • Amenorrhea (causes)
    • Congenital diseases with chromosomal aberrations
    • High doses of biotin (> 5 mg/day) may interfere with assay results. Patient assumed to be refraining from biotin supplementation for at least 3 days prior to blood draw.

References:

  1. Bhasin S, Cunningham GR, Hayes FJ, et al. Testosterone therapy in men with androgen deficiency syndromes: Endocrine Society clinical practice guidelines. J Clin Endorcinol Metab. 2010;95(6):2536-2559.
  2. Santen RJ, Allred DC, Ardoin SP, et al. Postmenopausal hormone therapy: an Endocrine Society scientific statement. J Clin Endocrinol Metab. 2010;95(7 Suppl 1):s1-s66.
  3. Kopper NW, Gudeman J, Thompson DJ. Transdermal hormone therapy in postmenopausal women: a review of the metabolic eff ects and drug delivery technologies. Drug Des Devel Ther. 2008;2:193-202.
  4. Goodman N, Cobin RH. Reproductive disorders. In: Camacho PM, Gharib H, Sizemore GW, eds. Evidence-Based Endocrinology. 3rd ed. Philadelphia, PA: Lippincott Williams & Wilkins. 2012:190-228.
Lab Values
Treatment Options

Treatment Options

Follicle Stimulating Hormone (FSH)

  • Identify etiology of elevated or decreased FSH levels with physical assessment and additional diagnostic tests as indicated
  • Treatment is based on the etiology of abnormal hormone levels
Clinical Significance