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HelpTest Code INHBM Inhibin B, Serum
Additional Codes
MAYO: INHB
EPIC: LAB4214
Reporting Name
Inhibin B, SUseful For
Aiding in the diagnosis of granulosa cell tumors and mucinous epithelial ovarian tumors
Monitoring of patients with granulosa cell tumors and epithelial mucinous-type tumors of the ovary known to overexpress inhibin B
As an adjunct to follicle-stimulating hormone testing during infertility evaluation
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
SerumOrdering Guidance
For the initial evaluation of patients suspected of having a granulosa cell tumor of the ovary, order INHAB / Inhibin A and B, Tumor Marker, Serum. If the results of the profile show that either inhibin A or B are elevated, consider monitoring the patient with the individual tests, INHA / Inhibin A, Tumor Marker, Serum or INHB / Inhibin B, Serum.
Specimen Required
Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Specimen Volume: 1 mL
Specimen Minimum Volume
0.6 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum | Refrigerated (preferred) | 14 days | |
| Frozen | 90 days |
Reference Values
Males
<15 days: 68-373 pg/mL
15-180 days: 42-516 pg/mL
6 months-7 years: 24-300 pg/mL
8-30 years: 47-383 pg/mL
31-72 years: <358 pg/mL
>72 years: Not established
Females
≤12 years: <183 pg/mL
13-41 years Regular Cycle (Follicular Phase): <224 pg/mL
42-51 years Regular Cycle (Follicular Phase): <108 pg/mL
13-51 years Regular Cycle (Luteal Phase): <80 pg/mL
>51 years (Postmenopausal): <12 pg/mL
Day(s) Performed
Monday, Wednesday, Friday
Test Classification
This test was developed, and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the US Food and Drug Administration.CPT Code Information
83520
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| INHB | Inhibin B, S | 56940-0 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 88722 | Inhibin B, S | 56940-0 |
Report Available
2 to 4 daysReject Due To
| Gross hemolysis | Reject |
| Gross lipemia | OK |
| Gross icterus | OK |
Method Name
Enzyme-Linked Immunosorbent Assay (ELISA)
Forms
If not ordering electronically, complete, print, and send an Oncology Test Request (T729) with the specimen.