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HelpTest Code 17OHPM 17-Hydroxyprogesterone, Serum
Additional Codes
MAYO: OHPG
EPIC: LAB720
Reporting Name
17-Hydroxyprogesterone, SUseful For
The analysis of 17-hydroxyprogesterone (17-OHPG) is 1 of the 3 analytes along with cortisol and androstenedione, that constitutes the best screening test for congenital adrenal hyperplasia (CAH), caused by either 11- or 21-hydroxylase deficiency.
Analysis for 17-OHPG is also useful as part of a battery of tests to evaluate females with hirsutism or infertility; both can result from adult-onset CAH
Testing Algorithm
See Steroid Pathways in Special Instructions.
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
Serum RedNecessary Information
Patient's age and sex are required.
Specimen Required
Container/Tube: Red top (serum gel/SST are not acceptable)
Specimen Volume: 0.6 mL
Specimen Minimum Volume
0.25 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum Red | Refrigerated (preferred) | 28 days | |
| Frozen | 28 days | ||
| Ambient | 7 days |
Special Instructions
Reference Values
Children:
Preterm infants
Preterm infants may exceed 630 ng/dL, however, it is uncommon to see levels reach 1,000 ng/dL.
Term infants
0-28 days: <630 ng/dL
Levels fall from newborn (<630 ng/dL) to prepubertal gradually within 6 months.
Prepubertal males: <110 ng/dL
Prepubertal females: <100 ng/dL
Adults:
Males: <220 ng/dL
Females
Follicular: <80 ng/dL
Luteal: <285 ng/dL
Postmenopausal: <51 ng/dL
Note: For pregnancy reference ranges, see: Soldin OP, Guo T, Weiderpass E, et al: Steroid hormone levels in pregnancy and 1 year postpartum using isotope dilution tandem mass spectrometry. Fertil Steril. 2005 Sept;84(3):701-710
Day(s) Performed
Monday through 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
83498
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| OHPG | 17-Hydroxyprogesterone, S | 1668-3 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 9231 | 17-Hydroxyprogesterone, S | 1668-3 |
Report Available
2 to 5 daysReject Due To
| Gross hemolysis | OK |
| Gross lipemia | Reject |
| Gross icterus | OK |
Method Name
Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
Forms
If not ordering electronically, complete, print, and send a General Request (T239) with the specimen.