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A B C D E F G H I J K L M N O P Q

Test Identifier Information

 
Registration CodeDHT
Method

Liquid Chromatography mass spectrometry (LCMSMS)

Diagnostic Use / Indications

Dihydrotestosterone (DHT) is the most potent naturally occuring androgen in man and is produced throught the action of 5a reductase(s) on testosterone. The 5a reductases are located in skin, hair follicules, prostate, genital skin and liver amongst others. DHT exerts its action via the androgen receptor as does testosterone (T). Both androgens are bound to SHBG. 

DHT analysis can be useful in differentiating enzyme defects from androgen receptor defects. In addition DHT levels provide a measure of 5a reductase activity in cases of hisutism and monitoring patients on 5a reductase inhibitors.

External Price$250.00(Exclusive of GST)
  

Specimen Collection

 
Specimen Collection Protocols

SERUM, red top tube.

Patient SpecimenSERUM, Red top only.
Paediatric Specimen500uL Red top tube.
Sample Delivery to LabFrozen
  

Instructions for Referral to CHLabs

 
Aliquot Instructions600uL Serum, paediatric absolute minimum 300ul serum. Freeze
Aliquot Transport to CHLFrozen
  

CHLabs Laboratory

 
DepartmentBiochemistry - Steroid Laboratory
Contact Details Email Email
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Contact Phone Number(03) 3640886 | x80886
Test AvailabilityBatched weekly (analysed on Friday, resulted Monday)
Turnaround Time7-14days
Reference Interval

Dependent on sex & patient`s age.

                      Dihydrotestosterone 
SexAgeReference Interval 
 0d to <1w<0.5 nmol/L
 1w - <30w<0.2 nmol/L
Female30w to <10y<0.2 nmol/L
 10y to <20y0.2 - 0.6 nmol/L
 20y - <110y<0.7 nmol/L
 0d to 1w (Premature)0.3 -1.8 nmol/L
 0d to 1w (Full term)0.2 - 2.1 nmol/L
Male1w to <30w0.4 - 2.9 nmol/L
 30w to <10y<0.2 nmol/L
 10y to <20y<1.8 nmol/L
 20y - <110y2.5 nmol/L

Additional Information

Endocrine and Steroid Laboratory Phone 03 364 0848

For results please contact Canterbury Health Laboratories ph. 03 364 0300.

 

Delphic Number Test Number7045

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