endocrine
Pregnenolone
Specification
- Method
- LC-MS/MS — steroid panel Liquid chromatography–tandem mass spectrometry
- Validated matrices
-
- Venous serum Standard draw
- Tasso capillary serum ~600 µL
- Neoteryx Mitra (VAMS) 30 µL per tip
- Tube
- RED
- CPT
84140- Reportable range
- 8.4375 – 750 ng/dL
- Stability
- 72 hours in a red-top tube — shorter than every other analyte on the endocrine panel, which is stable for 5 days.
Clinical utility
Clinicore is one of three laboratories in the United States offering serum pregnenolone analysis (verified September 2026).
Published reference ranges
Published values for Pregnenolone vary along 2 axes:
- sex
- age
Because a single unstratified figure would misrepresent them, none is shown here.
Published values vary by sex, age, time of collection, menstrual cycle phase and analytical method. The interval applicable to a patient's result appears on that patient's report.