HIGHLY SENSITIVE TROPONIN I

Test Name

Aliases

CARDIAC TROPONIN I, HIGHLY SENSITIVE TROPONIN I, TROPONIN I

Abbreviations

CTNI

Test Classification

INDIVIDUAL

Department

SPECIAL CHEMISTRY

Sub Department

TAT Category

BUSINESS (WORKING) TIME

Estimated TAT

TAT Units

HOURS

Test Requirements

Serum in plain tube (red top) or SST tube (yellow top) or in a separation vial. Centrifuge tubes within 1 hour. Separate centrifuged serum in plain tubes within 1 hour. When the order simply states Troponin, select Troponin I (C1026) instead of Troponin T (C1027). SHIPPING/ TRANSPORTATION REQUIREMENTS Shipping Temperature: Refrigerated ANALYTE STABILITY Room Temperature: 3 hours at 20-25°C │ Refrigerated: 3 days at 2-8°C │ Frozen: 4 weeks at -20°C

Clinical Utility

Evaluate suspected myocardial infarction (heart attack)/ acute coronary syndrome. For this indication, troponin is considered superior to cardiac enzymes (CK-MB, LDH, AST).

Last Review

26th Feb 2026