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DITE6 / DHTS-M
DIHYDROTESTOSTERONE, SERUM

Test Code DITE6 / DHTS-M 
Test DIHYDROTESTOSTERONE, SERUM 
Methodology Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS) 
Description Useful for: Montioring patients receiving 5 alpha-reductase inhibitor therapy or chemotherapy. Also for evaluating patients with possible 5 alpha-reductase deficiency.

NOTE: RESEARCH USE ONLY
Third party billing IS NOT AVAILABLE for this test. When ordered on Medicare patients, a properly executed Advance Beneficiary Notice (ABN) must be submitted with the specimen. 

Specimen Draw blood in either a plain, red-top tube or serum gel tube. Spin down and send 1.0 mL (minimum: 0.6 mL) of serum refrigerated in a screw-capped, plastic vial. 
Reference Values Males
Cord Blood: <= 100 pg/mL
<=6 months: <=1200 pg/mL

Tanner Stages: (Mean Age) Reference Range
Stage I: (7.1) <= 50 pg/mL
(>6 months and prepubertal)

Stage II: (12.1) <= 200 pg/mL
Stage III: (13.6) 80-330 pg/mL
Stage IV: (15.1) 220-520 pg/mL
Stage V: (18) 240-650 pg/mL

Adult Males
>19 years: 112-955 pg/mL

Females
Cord Blood: <= 50 pg/mL
<= 6 months: <= 1200 pg/mL

Tanner Stages: (Mean Age) Reference Range
Stage I: (7.1) <= 50 pg/mL
(>6 months and prepubertal)

Stage II: (10.5) <= 50 pg/mL
Stage III: (11.6) <= 300 pg/mL
Stage IV: (12.3) <= 300 pg/mL
Stage V: (14.5) <=300 pg/mL

Adult Females
20-55 years: <= 300 pg/mL
>55 years: <= 128 pg/mL 

Analytic Time 2 Days 
Day(s) Test Set Up Monday, Wednesday 
CPT Code(s) 80327  
G0480 or  G0481 or G0482 or G0483, Drug test(s), definitive (Government payers, if appropriate), if indicated