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Dihydrotestosterone : 90567
Test CodeDITESQ or 90567
Alias/See Also
DHT
CPT Codes
82642
Instructions
Plain red.
Transport Container
Centrifuge plain red and aliquot 1 mL (Min: 0.6 mL) serum into a standard transport tube.
Transport Temperature
Refrigerated.
Specimen Stability
Ambient: 7 days; Refrigerated: 14 days; Frozen: 6 months
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Moderate hemolysis to Gross hemolysis, grossly icteric, SST tubes, plasma
Methodology
Chromatography/Mass Spectrometry
Setup Schedule
Sunday - Friday
Report Available
1-4 days (From receipt at performing laboratory)
Limitations
This test was developed and its performance characteristics have been determined by Quest Diagnostics Nichols Institute, San Juan Capistrano. Performance characteristics refer to the analytical performance of the test.
Reference Range
Effective 1/13/2020
Female < or = 20 ng/dL
Male 12-65 ng/dL
Female < or = 20 ng/dL
Male 12-65 ng/dL
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.
Performing Laboratory
Quest Diagnostics
