ARUP's Laboratory Test Directory

0092334: Pregnenolone by LC-MS/MS, Serum or Plasma

Test Mnemonic: PREGNLONE
Methodology: Tandem Mass Spectrometry

Performed: Mon-Fri

Reported: 1-4 days

Specimen Required:  
Collect: One 4 mL SST.  Also acceptable: lavender (EDTA), pink (K2EDTA), or green (sodium or lithium heparin).

Transport: 0.5 mL serum or plasma, frozen.  (Min: 0.25 mL)  Submit specimen in an ARUP Standard Transport Tube.

Pediatric Collection/Transport: 0.25 mL serum or plasma, frozen.

Remarks: CRITICAL FROZEN.  Additional specimens must be submitted when multiple tests are ordered.  Serum or plasma should be separated from cells and frozen immediately after collection.

Unacceptable Conditions: Ambient or refrigerated specimens. 

Stability: After separation from cells: Ambient: Unacceptable; Refrigerated: Unacceptable; Frozen: 6 months

Reference Interval:
 
Females Males
7-9 years: 14-150 ng/dL
10-12 years: 19-220 ng/dL
13-15 years: 22-210 ng/dL
16-17 years: 22-229 ng/dL
18 years and older: 15-132 ng/dL 		7-9 years: 13-205 ng/dL
10-12 years: 15-151 ng/dL
13-15 years: 18-197 ng/dL
16-17 years: 17-228 ng/dL
18 years and older: 23-173 ng/dL
Tanner Stage I: 15-171 ng/dL
Tanner Stage II: 22-229 ng/dL
Tanner Stage III: 34-215 ng/dL
Tanner Stage IV-V: 26-235 ng/dL 		Tanner Stage I: 13-156 ng/dL
Tanner Stage II: 12-143 ng/dL
Tanner Stage III: 16-214 ng/dL
Tanner Stage IV-V: 19-201 ng/dL

CPT Code(s):
84140

 

 

 
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