Pregnenolone, LC/MS QPREGN

Method(s) Chromatography/Mass Spectrometry
Specimen Required
Collect

One 3 mL plain red (no gel) top tube.

Transport

0.5 serum frozen (Min: 0.2 mL).

* Collection Instructions *

  • Collect blood in a Vacutainer with no additives.
  • Allow blood to clot (30 minutes) at room temperature, 18-25°C.
  • Centrifuge and separate the serum from the cells.
  • Freeze as soon as possible.
Stability

Ambient: Unacceptable

Refrigerated: 72 days

Frozen: -20°C: 14 days

Frozen: -70°C: 30 days

Unacceptable Conditions
  • Gross hemolysis
  • Serum separator tube (SST)
Schedule Sun-Fri; Report available: 8 days
CPTCode 84140
Notes Performing Laboratory-Quest Diagnostics Nichols Institute-San Juan Capistrano, CA
Preferred Specimen Collection Device(s)
Reference Interval
 
Adult22-237 ng/dL
Pediatric
1-59 days68-1303 ng/dL
60 days - 1 yearLess than or equal to 219 ng/dL
2-6 yearsLess than or equal to 140 ng/dL
7-9 yearsLess than or equal to 156 ng/dL
10-12 years15-220 ng/dL
13-17 years12-196 ng/dL
No Appointment Necessary
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12 Patient Service Centers in Central New York.

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