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Test Name:
Inhibin A
- SBMF No:
30989 - Performance Lab Name:
Manual Lab - Test Mnemonic:
INHIBIN A - ABN:
Not required - CPT Code:
86336 - LOINC Code:
23883-2 - Spec Type:
Serum - Spec Container:
Gold top (SST) or red top (serum) tube - Alt Spec Type:
Plasma - Alt Spec Container:
Lavender top (EDTA) tube or green top (heparin) tube - Pref Vol:
1.0 mL - Min Vol:
0.5 mL - Fasting:
No - Spec Collect:
Routine venipuncture - Spec Process:
Serum sample tubes, clot 30 minutes
Promptly centrifuge 15 minutes
Immediately transfer serum or plasma to separate plastic tube and freeze - Spec Store Transport:
Frozen - Spec Stability:
8 hours room temperature (20-30°C)
48 hours refrigerated (2-8°C)
Greater than 48 hours, freeze (-20°C) – Do not use frost-free units that undergo repeated freeze/thaw cycles - Spec Reject:
Lipemic or hemolyzed sample - Methodology:
Chemiluminescent Immunoassay (CLIA) - Use:
Useful in studies of human reproductive physiology and as an endocrine marker for monitoring ovarian function - Reference Range:
- Inhibin A
- Normal cycling females:
Early follicular phase: 1.8–17.3 pg/mL
Mid follicular: 3.5–31.7 pg/mL
Late follicular: 9.8–90.3 pg/mL
Mid cycle: 16.9–91.8 pg/mL
Early luteal: 16.1–97.5 pg/mL
Mid luteal: 3.9–87.7 pg/mL
Late luteal: 2.7–47.1 pg/mL
IVF-peak levels: 354.2–1690.0 pg/mL
PCOS-ovulatory: 5.7–16.0 pg/mL
(polycystic ovary syndrome)
Postmenopausal: less than 7.9 pg/mL
Normal males: less than 2.1 pg/mL
- Day Run:
Mon, Wed, Fri - Time Run:
8:00 am - Time Reported:
5:00 pm - Test Type:
HORMONE
