Testosterone, total
- Test Name:
- Testosterone, total
- Collection Device/Tube Type:
-
1. EDM Base Lab: 5 mL blood - GOLD SST (gel)
2. CGY DSC: 4.5 mL blood - MINT LIHEP PST (gel)
3. NOTE: The preferred tube type at each testing site is acceptable at the alternate site
- Submission Requirements:
- 1 mL serum or lithium heparin plasma
- Frequency of Testing:
-
Daily
- Reference Range:
-
Gender
Age
Testosterone, total (nmol/L)
Male
0 to < 6 months
< 19.0
6 months to < 11 years
< 0.2*
11 to < 15 years
< 20.0*
15 to < 18 years
4.0 – 27.0*
≥ 18 years
8.0 – 35.0**
Female
0 to < 6 months
< 2.0
6 months to < 11 years
< 0.2*
11 to < 18 years
< 1.8*
≥ 18 years
< 2.0
Unknown/X
0 to < 6 months
Refer to final report comment
6 months to < 11 years
< 0.2*
≥ 11 years
Refer to final report comment
- Comments:
-
Note:
* Clinical correlation with puberty status suggested** Testosterone exhibits diurnal variation with values that are highest closest to waking. Collection time should be considered when making clinical decisions. A low value should be confirmed with a repeat test.
- Last Reviewed:
- 04 May 2023
