Dihydrotestosterone (Red Top Serum Only)

Diagnostic Use

Dihydrotestosterone (DHT) is an androgen produced by the actions of the enzyme 5-alpha reductase on testosterone. DHT is a potent androgen, with approximately 5x the potency of testosterone at the androgen receptor.

DHT analysis can be useful in the investigation of babies with disorders of sexual development, and is particularly helpful in the investigation of genetic 5-alpha reductase deficiency.

Requests for this test will be vetted by a chemical pathologist and will be rejected if insufficient relevant clinical information is provided. It is extremely rare to require DHT measurement in adults.

Department

Endocrinology Lab

Delphic Registration Code

DHT

Synonyms

5 alpha DHT
DHT
Dihydro T

Turnaround Time

14 days

Test Code

7045

Specimen Type

• Serum

Specimen Requirements

Tube/Container Type:

Acceptable

• Serum (Red Cap)

Pre-testing Requirements

Please be advised, DHT testing will not proceed unless explicitly endorsed by a chemical pathologist.
Please contact Endolab for further information if required (x80885).

Aliquot Instructions

Sample Type

• Serum

Minimum Volume (ml)

0.3

Transport to Lab

Frozen
If overnight - Frozen

Reference Intervals

Dependent on sex & patient’s age.

Test Method

Liquid chromatography mass spectrometry (LC-MS/MS)

Non-Funded Test Cost

$296.64 (Exclusive of GST)

Billing Code

7045

Contact Information

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