Troponin

Share this page:
Also known as: TnI; TnT
Formal name: Troponin
Related tests: CK-MB

At a Glance

Why Get Tested?

To determine if you have had a heart attack

When to Get Tested?

If you are having chest pain that may be a heart attack

Sample Required?

A blood sample drawn from a vein in the arm

Test Preparation Needed?

None

The Test Sample

What is being tested?

This test measures the level of troponin in your blood. Troponin is a protein found in muscle that helps it contract. There are two forms that can be measured — troponin I (TnI) and troponin T (TnT) — found in the heart and in other muscles. The tests for these forms of troponin measure only the type found in heart muscle. When a person has a heart attack, troponin is released into the blood. Troponin levels remain high longer than other substances (CK–MB) that may be measured if a heart attack is suspected and the troponin test is not available. This becomes important if a person waits for more than a day before going to the doctor after having had chest pain.

How is the sample collected for testing?

A blood sample is taken by needle from a vein in the arm.

Is any test preparation needed to ensure the quality of the sample?

No test preparation is needed.

The Test

Common Questions

Ask a Laboratory Scientist

* indicates a required field!



Please indicate whether you are a:   
  
  



You must provide a valid email address in order to receive a response.



| |

Article Sources

« Return to Related Pages

NOTE: This article is based on research that utilizes the sources cited here as well as the collective experience of the Lab Tests Online Editorial Review Board. This article is periodically reviewed by the Editorial Board and may be updated as a result of the review. Any new sources cited will be added to the list and distinguished from the original sources used.