Item Value
Test name Testosterone, Free (includes Total Testosterone), Pediatric
Available Stat? No
Turn around times Test run once per week (Thursday). Turnaround time 2-8 days
In House Availability Test run on Thursday
Performed by China Basin Chemistry
Normal range Testosterone, Total:
Age Males Females
Premature (26-28 weeks) 59-125 ng/dL 5-16 ng/dL
Premature (31-35 weeks) 37-198 ng/dL 5-22 ng/dL
Newborn 75-400 ng/dL 20-64 ng/dL
1-5 months 14-363 ng/dL < 20 ng/dL
6-24 months < 37 ng/dL < 9 ng/dL
2-3 years < 15 ng/dL < 20 ng/dL
4-5 years < 19 ng/dL < 30 ng/dL
6-7 years < 13 ng/dL < 7 ng/dL
8-9 years 2-8 ng/dL 1-11 ng/dL
10-11 years 2-165 ng/dL 3-32 ng/dL
12-13 years 3-619 ng/dL 6-50 ng/dL
14-15 years 31-733 ng/dL 6-52 ng/dL
16-17 years 158-826 ng/dL 9-58 ng/dL
18-39 years 300-1080 ng/dL 9-55 ng/dL



Total testosterone reference ranges by pubertal stage :

Tanner Stage Males Females
Tanner Stage I 2-15 ng/dL 2-17 ng/dL
Tanner Stage II 3-303 ng/dL 5-40 ng/dL
Tanner Stage III 10-851 ng/dL 10-63 ng/dL
Tanner Stage IV-V 162-847 ng/dL 11-62 ng/dL



Testosterone, Free:
Age Males Females
5 -9.9 years ≤ 5.3 pg/mL 0.2-5.0 pg/mL
10-13.9 years 0.7-52.0 pg/mL 0.1-7.4 pg/mL
14-17.9 years 18-111 pg/mL 0.5-3.9 pg/mL
18-69 years 35-155 pg/mL 0.1-6.4 pg/mL


Container type Red top (Gold top NOT acceptable )
Amount to Collect 2 mL (blood)
Sample type Serum

If you have additional questions regarding this test, please call: 415-353-1667