Troponin I (cTNL)

What is the Lab Name for Troponin I?

Troponin I

What is the Lab Abbreviation for Troponin I?


What is Troponin I in terms of Nursing Labs?

Troponins are proteins that initiate contraction of muscle fibers.  Troponin I (cTNL) is specific to heart muscle.  Troponin levels stay elevated for a week after muscle damage before returning to normal.

What is the Normal Range for Troponin I?

There is a wide range of normal values among varying institutions and texts with regard to Troponin I. It is essential to verify institutional norms. < 0.035 ng/mL

What are the Indications for Troponin I?

  • Evaluating damage to heart muscle
  • Diagnose a Myocardial Infarction (MI)

What would cause Increased Levels of Troponin I?

  • Heart damage
  • Myocardial Infarction (MI)

What would cause Decreased Levels of Troponin I?

  • N/A

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