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Pathology Departments Requesting & Reporting Blood Test Information Phlebotomy Guide Contact us
Blood Sciences

Blood Test Information

minimum sample volume required ~ 5ml

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Test Code: TES

Tube type: SST

Other acceptable tube types
Lithium heparin (pale green)

Special instructions

Reference ranges
Male 19+ years: 6 - 27
Female 19+ years: <2.7
No range is quoted for patients under 19 years old.


Turnaround Time
2 days

Department: Biochemistry

Clinical Application
Used in men in assessment of fertility, erectile dysfunction and response to treatment for prostatic cancer. In women used in assessment of hirsutism. Used as part of hCG stimulation test in investigation of ambiguous genitalia in infants, and in delayed puberty Test limitations: In isolated cases, elevated testosterone levels can be seen in samples from female patients with end stage renal disease (ESRD).


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