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Specimen Collection Manual and Test Catalog

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DIHYDROTESTOSTERONE

Geisinger Epic Procedure Code:  LAB2184    Geisinger Epic ID:  18879

SPECIMEN COLLECTION
Specimen type: 

Serum


Preferred collection container: 
Specimen required: 

1 mL aliquot of serum; minimum 0.6 mL.



SPECIMEN PROCESSING
Processing instructions: 

Centrifuge and transfer serum specimens to clean, plastic, screw-capped vial(s).


Transport temperature: 

Refrigerated (preferred) or frozen.


Specimen stability: 

Room Temperature: 7 days. Refrigerated: 14 days. Frozen: 30 days.


Rejection criteria: 

Moderate to gross hemolysis. Lipemia. Serum separator tubes. Plasma



TEST DETAILS
CPT code(s):  82642
Note: The billing party has sole responsibility for CPT coding.  Any questions regarding coding should be directed to the payer being billed.
The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.

Methodology: 
Chromatography/Mass Spectrometry
Synonyms: 

DITEST, Quest test code 90567, DHT


Clinical significance: 

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


Review Date:  11/25/2024

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