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Testosterone, Total, MS
MessageSendout testing for Testosterone is used for testing patient's under the age of 18 years and female patients.
Test Code
15983
Alias/See Also
LAB124
TST
TST
CPT Codes
84403
Preferred Specimen
1 mL serum collected in a red-top tube (no gel)
Minimum Volume
0.5 mL
Other Acceptable Specimens
Plasma collected in: Sodium heparin (green-top) tube or lithium heparin (green-top) tube
Instructions
Specify age and sex on test request form
Transport Container
Transport tube
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 7 days
Refrigerated: 21 days
Frozen: 2 years
Refrigerated: 21 days
Frozen: 2 years
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis • Grossly lipemic • Serum separator tube (SST)
Methodology
Chromatography/Mass Spectrometry
FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Setup Schedule
Daily
Report Available
5-6 days
Reference Range
Age | Males (ng/dL) | Females (ng/dL) |
Cord Blood* | 17-61 | 16-44 |
1-10 Days* | ≤187 | ≤24 |
11-30 Days | Not established | Not established |
1-2 Months* | 72-344 | ≤17 |
3-4 Months* | ≤201 | ≤12 |
5-6 Months* | ≤59 | ≤13 |
7-11 Months* | ≤16 | ≤11 |
1-5 Years | ≤5 | ≤8 |
6-7 Years | ≤25 | ≤20 |
8-10 Years | ≤42 | ≤35 |
11 Years | ≤260 | ≤40 |
12-13 Years | ≤420 | ≤40 |
14-17 Years | ≤1000 | ≤40 |
≥18 Years | 250-1100 | 2-45 |
Clinical Significance
Helpful in assessing testicular function in male and managing hirsutism, virilization in females.
Performing Laboratory
Quest Diagnostics Nichols Institute-San Juan Capistrano, CA |
33608 Ortega Highway |
San Juan Capistrano, CA 92675-2042 |