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17-OH Pregnenolone, Serum

Performing Laboratory

Esoterix, Inc.

Methodology

Radioimmunoassay (RIA) After Column Chromatography

Specimen Requirements

Draw blood in a gold-top serum gel tube(s). Spin down, separate serum from cells within 1 hour of draw, and send 2 mL (pediatric:  0.5 mL) of serum frozen in plastic vial.
Note:  Pediatric volume does not permit for repeat analysis.

Reference Values

PREMATURE INFANTS

26-28 weeks (day 4):  375-3,559 ng/dL

31-35 weeks (day 4):  64-2,380 ng/dL

FULL-TERM INFANTS

3 days:  10-829 ng/dL

1-5 months:  36-763 ng/dL

6-11 months:  42-540 ng/dL

PREPUBERTAL CHILDREN

12-23 months:  14-207 ng/dL

24 months-5 years:  10-103 ng/dL

6-9 years:  10-186 ng/dL

PUBERTY

44-235 ng/dL

Day(s) Test Set Up

Tuesday, Thursday, Saturday

Test Classification and CPT Coding

84140