Follicle-Stimulating Hormone (FSH), Serum
Use
The Follicle-Stimulating Hormone (FSH) test is useful for evaluating menstrual irregularities, suspected hypogonadism, predicting ovulation, infertility, and diagnosing pituitary disorders. It helps in assessing the levels of FSH, which plays a crucial role in the reproductive process. In males and females, FSH is involved in the regulation of the menstrual cycle and gametogenesis. Elevated FSH levels can indicate primary gonadal failure, testicular feminization syndrome, or precocious puberty, while low levels may suggest pituitary or hypothalamic failure.
Special Instructions
When ordering this test without electronic means, complete, print, and send an Oncology Test Request Form (T729) with the specimen. Centrifuge the serum within 2 hours of collection and aliquot into a plastic vial. The test can be performed any day of the week at Mayo Clinic Laboratories in Rochester, MN.
Limitations
Biotin levels up to 1200 ng/mL do not interfere with the assay. However, high doses of biotin might affect the accuracy of the results. Cross-reactivity with other hormones like thyrotropin, luteinizing hormone, HCG, prolactin, and growth hormone is negligible. Animal antibodies in patients might produce unreliable results by interfering with assay reagents. Improper specimen handling can cause rejection due to conditions like gross hemolysis or icterus.
FDA ApprovedNew York Approved
Methodology
Immunoassay (ECLIA)
Biomarkers
LOINC Codes
- 15067-2
- 15067-2
Result Turnaround Time
1-2 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
0.6 mL
Minimum Volume
0.5 mL
Container
Plastic vial
Collection Instructions
Centrifuge and aliquot serum into a plastic vial within 2 hours of collection.
Causes for Rejection
Gross hemolysis, Gross icterus
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 24 hours |
| Refrigerated | 7 days |
| Frozen | 180 days |