HIGH SENSITIVITY TROPONIN-I

Message

LAB304150 (for ED only)

Test Code

LAB139

Preferred Specimen

One 4.5 mL light green top tube
Pediatric: One light green microtainer

Other Acceptable Specimens

Dark green top tube

Instructions

Sample must be centrifuged within two hours of collection. Samples collected in a dark green (heparin) top tube must be removed from the red cells and put into aliquot tubes following centrifugation.

Transport Temperature

Refrigerated

Specimen Stability

Centrifuge within 2 hours of collection
Ambient: 8 hours
Refrigerated: 72 hours
Frozen: 1 month

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Samples collected in gold top or red top tubes

Methodology
Chemiluminescent Immunoassay

Setup Schedule

Sunday-Saturday

Clinical Significance

Any condition resulting in myocardial cell damage can potentially increase cardiac troponin-I (TnI) levels. Published studies have documented that these conditions include, but are not limited to, acute myocardial infarction (AMI), angina, unstable angina, congestive heart failure, myocarditis, cardiac surgery, or invasive testing and noncardiac related causes such as pulmonary embolism, renal failure, and
sepsis. Serial sampling is recommended to detect the temporal rise and fall of troponin levels characteristic of AMI.

Performing Laboratory
West Virginia University Hospital, Inc.

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.