| Ordering Code | 8015 |
|---|---|
| Test Name | TnI |
| Alias | High Sensitive Cardiac Troponin I hsTnI TRPHS Troponin I, High Sensitivity |
| Preferred Specimen | Plasma |
| Preferred Container | Lithium Heparin PST (Green) |
| Other Specimen/Container | Plasma in Lithium Heparin (Dark Green-PP No Gel) |
| Optimum Volume | 1 mL |
| Handling Instructions | All specimen types must be centrifuged within 2 hours of collection. PP (no gel separator) must be aliquoted from cells within 2 hours of collection Ensure residual fibrin and cellular matter has been removed prior to analysis. All turbid/cloudy/opaque/suspended cellular matter samples are aliquoted and centrifuged again (double spun) prior to testing. |
| Transport Requirements | Oahu: Ambient Airline: Refrigerated |
| Specimen Stability | Ambient: 4 Hours Refrigerated: 2 Days Frozen: 6 Months (Aliquot) Frozen samples should be thawed only once. |
| Rejection Criteria | Grossly hemolyzed, Insufficient quantity, Specimen older than stability limits, Wrong specimen type |
| Avail. Stat | YES |
| Analytic Time | 1 Day |
| Methodology | Chemiluminescent Immunoassay - Two-site Sandwich |
Reference range(s)
The reference ranges listed below are valid on this date of February 21, 2026.
| Component | Age | Male Norm | Male Critical Low | Male Critical High | Female Norm | Female Critical High | Female Critical Low | Units | Add'l info |
|---|---|---|---|---|---|---|---|---|---|
| TnI | ALL | <18 | >= 52 | <18 | >= 52 | ng/L | |||
| TnI Delta | ALL | ng/L | Change in TnI... Note1 |
Note1:
Change in TnI calculated only if previous TnI result obtained within 6 hours of current draw
See report..