Inhibin B




Test Mnemonic

INHIBB

CPT Codes

  • 83520 - QTY (1)

Includes

  • Inhibin B

Performing Laboratory

Cleveland Clinic Laboratories


Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
0.5 mLSerumSST (Gold) Refrigerated 

Alternate Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
0.5 mLSerumNo additive (Red) Refrigerated 

Minimum Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
0.2 mL     

Stability

Environmental Condition Description
Frozen30 days
Refrigerated7 days
Ambient4 hours

Days Performed

Wed, Fri

Turnaround Time

1 - 4 days

Methodology

Name Description
Enzyme-Linked Immunosorbent Assay (ELISA) 

Reference Range

Inhibin B
Sex Age From Age To Type Range Range Unit
       Female: 1 day - 12 years: <=182 pg/mL 
       Female: 13 - 41 years (regular cycle, follicular phase): 8 - 223 pg/mL 
       Female: 42 - 51 years (regular cycle, follicular phase): <=107 pg/mL 
       Female: 51 - 76 years (postmenopausal): <=11 pg/mL 
       Male: < 15 days: 68 - 373 pg/mL 
       Male: 15 days - 6 months: 42 - 516 pg/mL 
       Male: 7 months - 7 years: 24 - 300 pg/mL 
       Male: 8 - 30 years: 47 - 383 pg/mL 
       Male: 31 - 72 years: 10 - 357 pg/mL 

Special Info

For premenopausal females, collection is preferred during the follicular phase of the menstrual cycle. Room temperature specimens, and grossly hemolyzed specimens will be rejected.

Clinical Info

Use for monitoring patients with stromal granulosa cell tumors of the ovary and ovarian epithelial tumors of the mucinous type with inhibin B overexpression. Inhibin B is an endocrine marker to aid in the monitoring of gonadal function. In males, inhibin B may aid in the assessment of spermatogenesis and testicular function. In females, it may be useful in the assessment of ovarian reserve and activity, and oocyte quality. This test is performed using the ANSH ultra-sensitive Inhibin B ELISA kit. Values obtained with different methodologies or kits cannot be used interchangeably.