Test Overview
Test Methodology

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

Test Usage

Monitoring patients receiving 5 alpha reductase inhibitor therapy or chemotherapy and evaluating patients with possible 5 alpha reductase deficiency.

Reference Range *

Age specific reference ranges provided with report.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details
Days Set Up
Monday, Wednesday, Thursday, Friday
Analytic Time

2 - 9 days

Soft Order Code
DHTS
MiChart Code
Dihydrotestosterone
Synonyms
  • Allodihydrotestosterone
  • Androstanalone
  • 5 Alpha Reductase Deficiency
Laboratory
Sendout
Reference Laboratory
Mayo DHTS (81479)
Section
Special Testing
Specimen Requirements
Collection Instructions

Collect blood in a red top or SST tube. Centrifuge, aliquot serum into plastic vial and refrigerate.

Normal Volume
1 mL serum
Minimum Volume
0.6 mL serum
Storage Temperature
Refrigerated preferred, frozen acceptable
Additional Information

Test sent to Mayo Medical Laboratories.

Billing
CPT Code
82642
Fee Code
AA437
LOINC
1848-1
NY State Approved
No