Testosterone, Total, by Mass Spectrometry (Adult Females, Children, or Individuals on Testosterone-Suppressing Hormone Therapy)
Test Mnemonic
TESTMS
CPT Codes
- 84403 - QTY (1)
LOINC ®
2986-8
Performing Laboratory
Cleveland Clinic Laboratories
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Serum | Red Plain | Refrigerated | Allow specimen to clot. Centrifuge and transfer the serum to a plastic CCL tube within 2 hours of collection and refrigerate. |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.5 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | 3 days |
| Refrigerated | 14 days |
| Frozen | 30 days |
Days Performed
5 days per week
Turnaround Time
2 - 5 days
Methodology
| Name | Description |
|---|---|
| Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS) |
Clinical Info
This test measures testosterone using liquid chromatography-tandem mass spectrometry (LC-MS/MS). It may be used when low testosterone concentrations are expected, including but not limited to children and cisgender women, and for monitoring patients on testosterone-suppressing therapy.
Clinical Limitation
Tanner Stage reference intervals are not yet established.Â