PREGNENOLONE

Specimen Required
Draw blood in a plain red-top tube. Place sample on ice immediately after collection. Centrifuge, separate and send 0.5 mL serum (0.2 mL minimum) frozen in a screw-capped plastic vial.

Rejection Criteria
SST, hemolyzed specimens

Methodology
LC-Mass Spectrometry/Mass Spectrometry

Stability
Room Temperature: Unacceptable; Refrigerated: 72 hours; Frozen: 14 days; Frozen (-70°C): 30 days

Reference Range
Adult:    22-237 ng/dL  
1 day-59 days:   68-1303 ng/dL  
60 days – 1 year:   < or = 219 ng/dL  
2 years – 6 years:   < or = 140 ng/dL  
7 years – 9 years:    < or = 156 ng/dL  
10 years – 12 years:   15-220 ng/dL  
13 years – 17 years:    12-196 ng/dL  

Performed
Sunday-Thursday

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

Warde
Medical
Laboratory