Question

The physician also orders a blood test for Helen. Which factor supports a diagnosis of myocardial infarction?
Elevated LDL levels
Elevated HDL levels
Elevated Hct levels
Elevated cardiac troponin I

Answer 1

The factor that supports a diagnosis of myocardial infarction (heart attack) is **elevated cardiac troponin I**. Cardiac troponins are proteins released into the bloodstream when the heart muscle is damaged, making them a key biomarker for diagnosing myocardial infarction. Elevated levels of cardiac troponin I indicate injury to cardiac muscle and are commonly used in clinical settings to confirm a heart attack.