Pregnenolone, LC/MS
Quest Diagnostics
Sample type: Serum
Requires fasting: No
Phlebotomy required
Details
This test is key for distinguishing between different types of congenital adrenal hyperplasia (CAH), a group of genetic conditions affecting steroid hormone production. It's particularly useful for diagnosing rare CAH types and monitoring treatment effectiveness.
- Pregnenolone
Estimated days for results: Results should be available in 2 - 5 business days after the sample is collected
3–5 business days
Pediatric
1-59 days 68-1303 ng/dL
60 days-1 year ≤219 ng/dL
2-6 years ≤140 ng/dL
7-9 years ≤156 ng/dL
10-12 years 15-220 ng/dL
13-17 years 12-196 ng/dL
Blood Draw Options with Fullscript
Fullscript offers several convenient phlebotomy options to complete your lab testing:
Quest Diagnostics Patient Service Centers (PSC)
- Location: Visit a nearby Quest Diagnostics Patient Service Center.
- Cost: $10 sample collection fee (paid during lab order checkout).
- Scheduling: Schedule your appointment here. Appointments are recommended to reduce wait times. Walk-ins are accepted, but may experience delays. Aim to arrive 10 minutes before your appointment.
- Collection Instructions:
- Bring a valid ID.
- Bring your digital or printed requisition form, available in the Labs tab of your Fullscript account.
- Check-in: Scan the QR code from your confirmation email or follow kiosk instructions.
- More Info: Quest Diagnostics blood draw guide
Getlabs Mobile Phlebotomy
- Location: Sample collection at your home or office.
- Cost: $85 sample collection fee (paid during lab order checkout).
- Availability: Available in most locations – enter your ZIP code during checkout to confirm.
- Scheduling: Schedule your appointment here through your Fullscript account.
- Collection Instructions:
- Have your digital or printed requisition form and valid ID ready.
- Your phlebotomist will contact you by phone to coordinate arrival.
- More Info: Getlabs blood draw guide
- Preferred Specimen(s): 0.5 mL serum collected in a red-top tube (no gel)
- Alternative: NA
- Minimum Volume: 0.2 mL
- Collection Instructions: NA
- Transport Container: Transport tube
- Transport Temperature: Frozen
- Specimen Stability:
- Refrigerated: 72 hours
- Frozen: -20° C: 14 days, -70° C: 30 days
- Reject Criteria:
- Gross hemolysis • Serum separator tube (SST)
State restrictions:
Patient can't order this test if they are located in Hawaii, Puerto Rico, New Jersey, New York, or Rhode Island
