High Sensitivity Troponin T
Test Mnemonic
HSTNT
CPT Codes
- 84484 - QTY (1)
Performing Laboratory
Cleveland Clinic Laboratories
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Plasma | Lithium heparin PST (Lt. Green) | Refrigerated |
Alternate Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 1 mL | Plasma | Lithium heparin (Green) |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.3 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | 24 hours |
| Refrigerated | 24 hours |
| Frozen | 12 months. Freeze only once. |
Days Performed
7 days a week
Turnaround Time
8 hours
Methodology
| Name | Description |
|---|---|
| Electro Chemiluminescence Immunoassay (ECLIA) |
Reference Range
| High Sensitivity Troponin T | |||||
|---|---|---|---|---|---|
| Sex | Age From | Age To | Type | Range | Range Unit |
| Normal | <12 | ng/L | Urgent | Greater than or equal to 52 | ng/L |
Special Info
Clinical Info
When assessing risk for acute coronary syndromes: In patients undergoing blood draw greater than 2° from symptom onset, with history of very low to moderate risk and non-ischemic ECG, an initial hs-Troponin T less than 12 ng/L AND a 1° delta hs-Troponin T less than 3 ng/L should be considered very low risk for 30 day MACE.