Ordering Recommendation

Aid in the diagnosis and monitoring of various hormonal reproductive disorders.

Mnemonic
INHIBA
Methodology

Quantitative Chemiluminescent Immunoassay

Performed

Sun-Sat

Reported

1-2 days

New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation

Fasting specimens are recommended, but not required.

Collect

Serum Separator Tube (SST).

Specimen Preparation

Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.5 mL)

Storage/Transport Temperature

Refrigerated.

Unacceptable Conditions

Plasma. Hemolyzed or severely lipemic specimens.

Remarks
Stability

After separation from cells: Ambient: 72 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)

Reference Interval

Effective November 18, 2013

Age/ Phase
Inhibin A (Dimer) pg/mL
Normal Cycling Females:

Early Follicular Phase (-14 to -10)
Mid Follicular Phase (-9 to -4)
Late Follicular Phase (-3 to -1)
Mid Cycle (Day 0)
Early Luteal (1 to 3)
Mid Luteal (4 to 11 )
Late Luteal (12 to 14)
Normal Cycling Females:

1.8-17.3 pg/mL
3.5-31.7 pg/mL
9.8-90.3 pg/mL
16.9-91.8 pg/mL
16.1-97.5 pg/mL
3.9-87.7 pg/mL
2.7-47.1 pg/mL
IVF-Peak Levels
PCOS-Ovulatory
Postmenopausal
354.2-1690.0 pg/mL
5.7-16.0 pg/mL
less than 6.9 pg/mL
Normal males less than 2.1 pg/mL

Interpretive Data

This assay is performed using the Beckman Coulter Unicel DxI assay. Values may be elevated during normal pregnancy.  Preeclampsia, Down Syndrome, and some cancers may increase Inhibin-A values.

Compliance Category

FDA

Note
Hotline History
N/A
CPT Codes

86336

Components
Component Test Code* Component Chart Name LOINC
0070137 Inhibin-A (Dimer) 23883-2
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • dimeric inhibin A
  • inhibin-A
Inhibin A (Dimer)