Test Directory

Testosterone

Containers - Adult

Brown Cap, Gel Clotted	Volume Range 1.0 ml Additive per Container None
Orange Cap	Volume Range 1.0 ml Additive per Container Lithium-heparin

Containers - Child

Orange Cap - Paediatric	Volume Range 0.4 ml Additive per Container Lithium-heparin

Reference ranges

Adult Female: 0.3 - 1.7 nmol/L

Adult Male: 8.6 - 29 nmol/L

<18y Female (Tanner stages): <0.6 nmol/L pre-pubertal, <1.4 nmol/L (B2), 0.4-1.9 nmol/L (B3/B4/B5)

<18y Male (Tanner stages): <0.5 nmol/L pre-pubertal, <10.6 nmol/L (G2), 0.4-30 nmol/L (G3), 5.6-30 nmol/L (G4), 10-30 nmol/L (G5)

Laboratory Site

RIE

51 Little France Crescent
Old Dalkeith Road
Edinburgh
EH16 4SA

Telephone (Biochemistry): 0131 242 6806

SJH

Howden Road West
Howden
Livingston
West Lothian
EH54 6PP

Telephone (Biochemistry): 01506 52 3160/1

WGH

Crewe Road South
Edinburgh
EH4 2XU

Telephone (Biochemistry): 0131 537 1910/1

Special instructions for collection

Collect blood from male patients preferably in morning (8-11 am) as levels fall by approximately 20% in afternoon. In females collect during days 1 - 5 of cycle, where possible.

Availability

Normal working hours only.

Anticipated turnaround

4 days

General additional information

See also free androgen index and calculated free testosterone.