Testosterone, Total, Pediatric
Label Mnemonic: TEST1
Epic Lab Code: LAB4139
Downtime Form: A-1a Miscellaneous Request
Commercial Mail-out Laboratory
5231 RCP
356-8593
Specimen(s):
Serum
Collection Medium:
Red top tube 5 mL (Clot Activator)
Minimum:
Preferred Minimum: 1 mL serum in a red top tube
Absolute Minimum: 0.2 mL serum in a red top tube - This volume does not permit repeat analysis
Rejection Criteria:
EDTA plasma
Delivery Instructions:
Deliver to laboratory within 1 hour of collection.
Turn Around Time:
1-4 days upon receipt at reference laboratory
Reference Range:
Female
Premature (26-28 weeks): 5-16 ng/dL
Premature (31-35 weeks): 5-22 ng/dL
Newborn: 20-64 ng/dL
1-5 months: Less than 20 ng/dL
6-24 months: Less than 9 ng/dL
2-3 years: Less than 20 ng/dL
4-5 years: Less than 30 ng/dL
6-7 years: Less than 7 ng/dL
8-9 years: 1-11 ng/dL
10-11 years: 3-32 ng/dL
12-13 years: 6-50 ng/dL
14-15 years: 6-52 ng/dL
16-17 years: 9-58 ng/dL
18-39 years: 9-55 ng/dL
40-59 years: 9-55 ng/dL
60 years and older: 5-32 ng/dL
Premenopausal (Greater than 18 years): 9-55 ng/dL
Postmenopausal: 5-32 ng/dL
Tanner Stage I: 2-17 ng/dL
Tanner Stage II: 5-40 ng/dL
Tanner Stage III: 10-63 ng/dL
Tanner Stage IV-V: 11-62 ng/dL

Male
Premature (26-28 weeks): 59-125 ng/dL
Premature (31-35 weeks): 37-198 ng/dL
Newborn: 75-400 ng/dL
1-5 months: 14-​363 ng/dL
6-24 months: Less than 37 ng/dL
2-​3 years: Less than 15 ng/dL
4-​5 years: Less than 19 ng/dL
6-7 years: Less than 13 ng/dL
8-9 years: 2-8 ng/dL
10-11 years: 2-165 ng/dL
12-13 years: 3-619 ng/dL
14-15 years: 31-​733 ng/dL
16-17 years: 158-826 ng/dL
18-39 years: 300-1080 ng/dL
40-59 years: 300-890 ng/dL
60 years and older: 300-720 ng/dL
Premenopausal (Greater than 18 years): Does Not Apply
Postmenopausal: Does Not Apply
Tanner Stage I: 2-15 ng/dL
Tanner Stage II: 3-303 ng/dL
Tanner Stage III: 10-851 ng/dL
Tanner Stage IV-V: 162-847 ng/dL
Comments:
This test is suggested for women and children due to an improved sensitivity of testosterone by LC-MS/MS.
Methodology:
Quantitative High Performance Liquid Chromatography-Tandem Mass Spectrometry
CPT Code:
84403