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Test Code PRGNOM Pregnenolone, Serum

Additional Codes

EPIC EAP  Mayo
LAB1073 PREGN

Reporting Name

Pregnenolone, S

Useful For

An ancillary test for congenital adrenal hyperplasia, particularly in situations in which a diagnosis of both 21- and 11-hydroxylase deficiency have been ruled out

 

Confirming a diagnosis of 3-beta-hydroxy dehydrogenase deficiency

Method Name

Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS)

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Serum


Specimen Required


Supplies: Sarstedt Aliquot Tube, 5 mL (T914)

Collection Container/Tube:

Preferred: Red top

Acceptable: Serum gel

Submission Container/Tube: Plastic vial

Specimen Volume: 1 mL

Collection Instructions:

1. Within 2 hours of collection, centrifuge the specimen and immediately aliquot serum into a plastic vial.

2. Freeze immediately.


Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Frozen 28 days

Reject Due To

Gross hemolysis OK
Gross lipemia OK
Gross icterus OK

Special Instructions

Day(s) Performed

Monday through Wednesday, Friday

CPT Code Information

84140

LOINC Code Information

Test ID Test Order Name Order LOINC Value
PREGN Pregnenolone, S 2837-3

 

Result ID Test Result Name Result LOINC Value
88645 Pregnenolone, S 2837-3

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.

Report Available

3 to 7 days