Testosterone

Pathology category

Biochemistry

Code

TEST

Referral code

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Test information

Used for monitoring androgen status in both males and females. Levels decrease over 50 years of age.

Guidelines

Pre-analytical

Reference range

Male (nmol/L)    Female (nmol/L)
0 – 18M:    0 – 9.85                    0 – 2.2
18M – 7Y:  0 – 0.35                   0 – 0.35
7Y – 9Y:     0 – 0.62                   0 – 0.62
9Y – 12Y:   0 – 1.63                    0 – 1.63
12Y – 15Y: 0.38 – 19.64            0.35 – 2.26
15Y – 19Y: 0.38 – 19.64            0.62 – 2.98
Adult:         6.07 – 27.1               0 – 2.6

Source: Beckman Coulter and CALIPER (Paeds)

Tube type

Tube type info

Adults: 5ml Serum SST (gold top)

Special requirements

Minimum volume

Adults: 0.5 ml

Assay frequency

Run daily at local laboratory

TAT Inpatient (urgent)

TAT Inpatient

48 hrs

TAT GP/Outpatient

48 hrs

Referral lab

Local, Clinical Biochemistry