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HelpTest Code LAB2883 CAH Panel, 21-Hydroxylase Deficiency
Clinical System Name
CAH Panel, 21-Hydroxylase Deficiency
Synonyms
CAH Panel, 21-Hydroxylase Def Post Stim
17-Hydroxypregnenolone (CAH 21 Hydroxylase Deficiency Panel)
17-Hydroxyprogesterone (CAH 21 Hydroxylase Deficiency Panel)
Androstenedione (CAH 21 Hydroxylase Deficiency Panel)
Dehydroepiandrosterone (DHEA) (CAH 21 Hydroxylase Deficiency Panel)
Sample Requirements
Specimen: Whole blood
Container(s): Gold SST, Red, Dark Green/Sodium Heparin, or Lavender/EDTA
Preferred Vol: 4.0 mL
Minimum Vol: 2.0 mL
Note: Deliver to CPA within 30 minutes of collection.
Processing Instructions
Reject due to: Room temperature or refrigerated
Spin: Y
Aliquot: Y
Temp: -20 C
Storage location: CRITICAL FROZEN. Separate and aliquot 1 - 2 mL serum or plasma from cells within TWO hours of collection. Place sample in the CPA -20 freezer, Send Outs rack.
Off-site collection: Separate serum or plasma from cells within TWO hours of collection. CRITICAL FROZEN.
Stability
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum or Plasma | Room Temp |
Unacceptable |
| Refrigerated |
Unacceptable |
|
| Frozen |
6 m |
Availability
| STAT | Performed | TAT |
|---|---|---|
| N | Daily | 1 - 4 d |
Performing Laboratory
ARUP Laboratories
500 Chipeta Way
Salt Lake City, UT 84108-1221
Phone Number: (800) 522-2787
Department
Department: Send Outs
Phone Number: (206) 987-2563
CPT Codes
82157, 83498, 84143, 82626
Methodology
Method: Quantitative High Performance Liquid Chromatography-Tandem Mass Spectrometry
Analytical Volume: 0.9 mL Serum or Plasma
Limitations:
Reference Range
Reference values provided with patient report.
Send Out Instructions
| Reference Test Name: | Congenital Adrenal Hyperplasia Panel, 21-Hydroxylase Deficiency |
| Reference Lab Test Code: | |
| Instructions: |
Send out Monday through Friday with the ARUP courier. |
Description
This panel includes Androstenedione, 17-Hydroxyprogesterone, 17-Hydroxypregnenolone, and Dehydroepiandrosterone performed by LC/MS/MS.