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Inhibin – A

₹2,500.00

15 minutes
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The Inhibin – A test measures the level of Inhibin A, a protein hormone produced by the ovaries (in females) and testes (in males), and it plays a key role in the regulation of the reproductive system. In females, inhibin A is primarily produced by granulosa cells in the ovaries, and its levels fluctuate throughout the menstrual cycle. It is also a marker of ovarian function.

Inhibin A is commonly used in diagnostic testing, particularly in the context of fertility, ovarian cancer, and certain genetic screenings. It is part of the Quadruple Screen (also called the AFP, hCG, estriol, and inhibin A test), which is performed during pregnancy to assess the risk of Down syndrome and other chromosomal abnormalities.

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    Description

    Why It’s Done:
    The Inhibin A test is performed for several reasons:
    • Fertility testing: It is used to evaluate ovarian reserve and function, especially in women undergoing IVF (in vitro fertilization) or other fertility treatments.
    • Ovarian cancer screening: Elevated levels of inhibin A can be associated with granulosa cell tumors, a type of ovarian cancer.
    • Pregnancy screening: In the second trimester of pregnancy, inhibin A is measured as part of the Quadruple Screen to assess the risk of chromosomal abnormalities (e.g., Down syndrome, Edwards syndrome).
    • Menstrual cycle evaluation: Abnormal inhibin A levels can indicate ovulatory disorders or ovarian dysfunction.

    Preparation:
    • Sample required: Blood sample (serum).
    • No fasting is typically required for this test.
    • Timing: If the test is for pregnancy screening, it is usually done between 15–20 weeks of gestation.
    • For fertility or ovarian reserve testing, the test is often done during the early follicular phase of the menstrual cycle, typically on days 2–5.

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