Last Modified: 1/15/2020 1:13:50 PM

Medical Necessity Documentation:  
Client Notes:  
Specimen Requirements: 1.0 mL Serum from a Red Top Tube in a Plastic Vial 
Minimum Volume: 0.6 mL Serum
Transport & Storage: Temperature/Stability: 7 days Ambient (transport)
14 days Refrigerated
30 days Frozen
Rejection Criteria: Moderate to Gross Hemolysis; Lipemia; SST or PST Tubes; Plasma
Reference Range:
Males: 12-65 ng/dL
Females: < or = 20 ng/dL
Critical Ranges:  
Test Comments:  
Methodology: Liquid Chromatography, Tandem Mass Spectroscopy
Clinical Significance: DHT is a potent androgen derived from testosterone via 5-alpha-reductase activity. 5-alpha-reductase deficiency results in incompletely virilized males (phenotypic females). This diagnosis is supported by an elevated ratio of testosterone to DHT.
Custom Panel: No


Turn Around Time: 2 to 5 days
Days Performed: Sunday, Monday, Tuesday, Wednesday, Thursday, Friday
Sites Performed: Quest - Chantilly to San Juan Capistrano
PHL Test Code: MSOT
EPIC Test Code:
Send Out Test Code: 90567
Alternate Test Names: DHT; Dihydrotestosterone, LC/MS/MS
Included Tests:  
CPT Coding: 82642

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