Laboratory Medicine

Test catalogue

Testosterone (Free, Total and Bioavailable)
Test Name Testosterone (Free, Total and Bioavailable)
Specimen Type / Requirements Container Type = Gold (SST) Minimum Testing Volume = 1ml Serum Tube must fill to at least ½ or greater of its vacuum capacity
Specimen Handling Collection Instructions: Serum or plasma (heparin), free from hemolysis, collected with or without gel separator. For plasma use lithium heparin only. Separate serum or plasma from cells within 2 hours of collection Write your initials, date and time of collection on the collection label. Stability: Stable for 4 hours at room temperature, at 2-8°C for 4 days and frozen for 1 month. Transportation: Transport at room temperature ASAP. Spin if sample time of collection to time sample get to lab exceeds 2hrs Laboratory Staff Instructions: Separate serum or plasma from cells within 2 hours of collection. . Sample Rejection Criteria: Unlabeled or samples of non sufficient quantity
Required Documentation
Turnaround Time (TAT) 1 Day	Test Utilization
Reference Value Males: Total Testosterone 0 - 1 Yrs: 0 - 15.0 nmol/L 1- 9 Yrs: 0 - 0.4 nmol/L 9-10 Yrs: 0 - 15.0 nmol/L 11-12 Yrs: 2.2 – 27.0 nmol/L 13-14 Yrs: 6.2 - 27.0 nmol/L 14-18 Yrs: 6.5 - 31.0 nmol/L 19-49 Yrs: 8.6 - 30.0 nmol/L >=50 Yrs: 6.6 - 26.0 nmol/L Bioavailable Testosterone Male: 2.0 – 8.6 nmol/L	Female: Total Testosterone < 10 Yrs: 0 - 0.3 nmol/L 10 - 11 Yrs: 0 - 0.4 nmol/L 12 - 13 Yrs: 0 - 0.9 nmol/L 13 - 14 Yrs: 0 - 1.0 nmol/L 15 - 18 Yrs: 0.2 - 1.5 nmol/L 19-49 Yrs: 0.3 – 1.8 nmol/L >=50 Yrs: 0.1 – 1.5 nmol/L Bioavailable Testosterone Female: 0.00 - 0.20 nmol/L
Test Code FTG	Methodology Bioavailable Testosterone: RIA Total Testosterone: Competitive Immunoassay
Testing Location SMH-Biochemistry	Other Information Last Updated: March 03, 2020

Testosterone (Free, Total and Bioavailable)

Test Name

Testosterone (Free, Total and Bioavailable)

Specimen Type / Requirements

Container Type = Gold (SST)

Minimum Testing Volume = 1ml Serum

Tube must fill to at least ½ or greater of its vacuum capacity

Specimen Handling

Collection Instructions: Serum or plasma (heparin), free from hemolysis, collected with or without gel separator. For plasma use lithium heparin only. Separate serum or plasma from cells within 2 hours of collection

Write your initials, date and time of collection on the collection label.

Stability: Stable for 4 hours at room temperature, at 2-8°C for 4 days and frozen for 1 month.

Transportation: Transport at room temperature ASAP. Spin if sample time of collection to time sample get to lab exceeds 2hrs

Laboratory Staff Instructions: Separate serum or plasma from cells within 2 hours of collection. .

Sample Rejection Criteria: Unlabeled or samples of non sufficient quantity

Required Documentation

Turnaround Time (TAT)

1 Day

Test Utilization

Reference Value

Males: Total Testosterone

0 - 1 Yrs: 0 - 15.0 nmol/L

1- 9 Yrs: 0 - 0.4 nmol/L

9-10 Yrs: 0 - 15.0 nmol/L

11-12 Yrs: 2.2 – 27.0 nmol/L

13-14 Yrs: 6.2 - 27.0 nmol/L

14-18 Yrs: 6.5 - 31.0 nmol/L

19-49 Yrs: 8.6 - 30.0 nmol/L

>=50 Yrs: 6.6 - 26.0 nmol/L

Bioavailable Testosterone

Male: 2.0 – 8.6 nmol/L

Female: Total Testosterone

< 10 Yrs: 0 - 0.3 nmol/L

10 - 11 Yrs: 0 - 0.4 nmol/L

12 - 13 Yrs: 0 - 0.9 nmol/L

13 - 14 Yrs: 0 - 1.0 nmol/L

15 - 18 Yrs: 0.2 - 1.5 nmol/L

19-49 Yrs: 0.3 – 1.8 nmol/L

>=50 Yrs: 0.1 – 1.5 nmol/L

Bioavailable Testosterone

Female: 0.00 - 0.20 nmol/L

Test Code

FTG

Methodology

Bioavailable Testosterone: RIA

Total Testosterone: Competitive Immunoassay

Testing Location

SMH-Biochemistry

Other Information

Last Updated: March 03, 2020