High Sensitivity Troponin I HSCTNI
| Method(s) | Direct Chemiluminescent Immunoassay |
|---|---|
| Specimen Required | |
| Collect | One light green (lithium heparin plasma) top tube. |
| Transport | 1 mL plasma at 2-8°C. (Min: 0.5 mL) |
| Stability | Refrigerated: 24 hours; Frozen: 40 days when frozen at less than or equal to -20°C |
| Unacceptable Conditions | Serum or EDTA, sodium heparin and sodium fluoride/potassium oxalate plasma specimens |
| Schedule | Daily-24 hours per day |
| Billing Code | 1010591 |
| CPTCode | 84484 |
| Notes | When assessing risk for Acute Coronary Syndrome, an initial HsCTNI below the 99th percentile reference value (females <34 ng/L and males <53 ng/L) and a 1 hour delta less than 15 ng/L should be considered low risk for myocardial injury when evaluated in the context of patient history, age, risk factors and EKG. A single HsCTNI value of greater than or equal to 115 ng/L is highly suggestive of myocardial ischemia. |
| Preferred Specimen Collection Device(s) | |
| Reference Interval | |
|
Male: 0 - 52 ng/L
|
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