PREGNENOLONE

Specimen Required
Draw blood in a plain red-top tube. Centrifuge, separate and send 0.5 mL serum (0.2 mL minimum) refrigerated in a screw-capped plastic vial.

Rejection Criteria
SST, hemolyzed specimens

Methodology
LC-Mass Spectrometry/Mass Spectrometry

Stability
Room Temperature: 48 hours; Refrigerated: 7 days; Frozen: 1 year

Reference Range
Adult Reference Ranges for Pregnenolone, LC/MS/MS:
Males (18-58 years): 13-208 ng/dL
Premenopausal Females (18-51 years): 7-188 ng/dL
Postmenopausal Females (59-81 years): 13-111 ng/dL
Pediatric Reference Ranges for Pregnenolone, LC/MS/MS:
1 day-59 days:   12-1331 ng/dL  
60 days - 1 year:   <=170 ng/dL  
2 years-6 years:   <=107 ng/dL  
7 years-9 years:   <=114 ng/dL  
10 years-12 years:   <=163 ng/dL  
13 years-17 years:   <=325 ng/dL  

Performed
Sunday-Thursday

Turnaround Time6-8 days
Test CodePREGN
CPT-4 Code (s)
84140
LOINC Codes
2837-3

Warde
Medical
Laboratory