The Leeds Teaching Hospitals NHS Trust

Dihydrotestosterone

Dihydrotestosterone

5-alpha-reductase converts testosterone, DHEA and androstenedione into DHT. DHT is responsible for external mascularisation of males. Hence its deficiency leads to ambiguous genitalia in males. Circulating concentrations are of little significance in females.

Tube Serum Gel
ID 12632
Availability Monthly
Additional Information To investigate ambiguous genitalia in neonates and young children. To investigate suspicion of 5alpha- reductase deficiency. Very low levels could indicate an enzyme deficiency.
Turn Around 35 days
Send to Specialist Laboratory Medicine
Block 46
St James hospital
Beckett Street
Leeds
LS9 7TF
Contact 1132067043
Advice 01132064717, stephen.gibbons@nhs.net
Collection Con No restrictions
Sample REQ Blood
Ref. Range (Male) 0.4-1.9
Ref. Range (Female) <0.5
Ref. Range (Paed) Paediatric samples - no ranges, interpretive comment added for HCG tests
Units nmol/L
IP Routine TAT 35 days
GP Acute TAT 35 days
GP Routine TAT 35 days
Telepath DHT2J
ICE Codes LDHT