Inhibin B, Serum
Use
The Inhibin B serum test is useful for aiding in the diagnosis of granulosa cell tumors and mucinous epithelial ovarian tumors. It is also used for monitoring patients with these tumors, particularly those known to overexpress inhibin B. Additionally, this test serves as an adjunct to follicle-stimulating hormone (FSH) testing during infertility evaluations. Its role in infertility evaluation also extends to assessing ovarian reserve, as inhibin B levels directly reflect the number of follicles in the ovaries.
Special Instructions
Not provided.
Limitations
Inhibin B levels can fluctuate during the menstrual cycle, necessitating careful interpretation, especially in premenopausal women. It should not be used as absolute evidence for the diagnosis of malignant diseases, and results should be considered in conjunction with clinical evaluations and other diagnostic procedures. Variability in testing methodology and potential for antibody interference, such as human anti-mouse antibodies, may affect results. Serial patient monitoring should consistently use the same method to ensure reliable comparison.
New York Approved
Methodology
Immunoassay (ELISA)
Biomarkers
Inhibin B
Protein
LOINC Codes
- 56940-0 - Inhibin B SerPl IA-mCnc
- 56940-0 - Inhibin B SerPl IA-mCnc
Result Turnaround Time
2-4 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
0.5 mL
Minimum Volume
0.4 mL
Container
Plastic vial
Collection Instructions
Centrifuge and aliquot serum into a plastic vial.
Causes for Rejection
Gross hemolysis
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 7 days |
| Refrigerated | 14 days |
| Frozen | 90 days |