| Ordering Code | 324 |
|---|---|
| Test Name | Testosterone, Total |
| Alias | Total Testosterone |
| Preferred Specimen | Serum |
| Preferred Container | SST (Gold) |
| Other Specimen/Container | Plasma in EDTA, K2 (Lavender), Plasma in Lithium Heparin (Green), Serum in Plain (Red) |
| Optimum Volume | 0.5 mL |
| Transport Requirements | Oahu: Ambient Airline: Ambient If transport >5 Days, send refrigerated. |
| Specimen Stability | Ambient: 5 Days Refrigerated: 14 Days Frozen: 6 Months Freeze only once. |
| Rejection Criteria | Grossly hemolyzed, Insufficient quantity, Re-frozen, Wrong specimen type, Heat-inactivated sample, Azide stabilized sample |
| Avail. Stat | NO |
| Analytic Time | 1 Day |
| Methodology | Electrochemiluminescence Immunoassay (ECLIA) |
Reference range(s)
The reference ranges listed below are valid on this date of June 20, 2025.
| Component | Age | Male Norm | Male Critical Low | Male Critical High | Female Norm | Female Critical High | Female Critical Low | Units | Add'l info |
|---|---|---|---|---|---|---|---|---|---|
| Testosterone, Total | >=50Y | 193-740 | 3-41 | ng/dL | |||||
| Testosterone, Total | 0-49Y | 249-836 | 8-48 | ng/dL |