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Troponin I, High Sensitivity : 34693
Test CodeTNIC or 34693
Alias/See Also
High Sensitivity,Troponin HS
CPT Codes
84484
Instructions
Remove serum/plasma from cells and freeze as soon as possible. Minimize exposure to room temperature.
Transport Container
Preferred Specimen
1 mL frozen serum
Alternative Specimens
Plasma collected in: Lithium heparin (green-top) tube
Minimum Volume
0.5 mL
1 mL frozen serum
Alternative Specimens
Plasma collected in: Lithium heparin (green-top) tube
Minimum Volume
0.5 mL
Transport Temperature
Frozen.
Specimen Stability
Room temperature: 4 hours; Refrigerated: Unacceptable; Frozen: 30 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Received room temperature; Received refrigerated; EDTA plasma; Sodium Heparin plasma
Methodology
Immunoassay
Setup Schedule
Sunday - Saturday
Report Available
1 day
Reference Range
≤47 ng/L
Clinical Significance
Troponin I is part of a protein complex which regulates the contraction of striated muscle. In acute coronary syndromes (ACS), it can be detected in blood at 4-8 hours following the onset of chest pain, reaches a peak concentration at 12-16 hours, and remains elevated for 5-9 days. Troponin I has been used as a reliable marker in the diagnosis of perioperative myocardial infarction in patients undergoing cardiac surgery.
Performing Laboratory
med fusion
