5-a-Dihydrotestosterone


Sunquest Code:DHTEST  
Epic Code:LAB977Epic Name:Dihydrotestosterone
Synonyms:DHT; Dihydrotestosterone Sulfate
Methodology:High performance liquid chromatography/Tandem mass spectrometry
CPT Code:82542
Turnaround Time:Specimens are sent to reference laboratory Mon-Sat; results are reported in 1-4 days.
Compliance:

This test was developed and its performance characteristics determined by ARUP Laboratories. The U.S. Food and Drug Administration has not approved or cleared this test; however FDA clearance or approval is not currently required for clinical use. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions.



Collection Instructions

Specimen:Blood
Optimal Volume:2 mL
Minimum\Peds Volume:1.4 mL
Container:Red or gold (gel) (Red (no gel))
Causes for Rejection:Hemolyzed or lipemic specimens.


Processing and Shipping

Specimen Processing:Centrifuge and aliquot 1 mL, 0.6 mL minimum within 2 hours of collection. Freeze immediately.
Shipping Instructions:Ship on dry ice.
Test Performed at or Referral Lab Lab Sendouts  (ARUP)
Referral Lab number:2002349


Interpretive

Reference Range:

 

Female:

pg/mL

Premature

20.0-130

0-6 d, Full term

20.0-150.0

1 w – 9 y

0-49.9

10-19 y

50.0-170.0

20 y and older

24.0-208.0

 

Tanner Stage I: 1.0-64.3 pg/mL

Taner Stage II: 5.5-95.9 pg/mL

Tanner Stage III: 11.4-158.3 pg/mL

Tanner Stage IV & V: 18.7-193.8 pg/mL

 

 

Male:

pg/mL

Premature

100-530

0-6 d, full term

50.0 – 600.0

1 w – 6 mo

120.0-850.0

7 mo – 9 y

0-49.9

10-19 y

0-533.0

20 and older

106.0-719.00

 

Tanner Stage I: 1.0-47.6 pg/mL

Taner Stage II: 3.5-397.9 pg/mL

Tanner Stage III: 14.8-574.6 pg/mL

Tanner Stage IV & V: 44.9-511.8 pg/mL

 

 

Use:

Dihydrotestosterone (DHT) is the primary androgenic hormone and is formed by the peripheral action of 5-a-reductase on testosterone. Individuals with a deficiency of 5-a-reductase fail to develop male genitalia and appear to be phenotypic females. DHT and its metabolites are reduced in these patients. Finasteride (ProscarÒ) inhibits 5-a-reductase activity and reduces serum DHT concentrations.

 

 



Click HERE to Report test errors or omissions.
*If no email program is associated with this computer, please contact:
systemlabguide@fairview.org for TestID: 662"