Question

The resultant condition of coronary artery disease is angina or myocardial infarction, which is a manifestation of hypoxia and subsequent injury to heart muscle. Further subclassifications for reduced perfusion are: stable angina, unstable angina, non-STEMI, and STEMI

Your challenge is to differentiate between these categories: How are they the same? How are they different? What criteria or diagnostics assist you in determining what category the patient is presenting with?

Answer 1

Answer :

Differentiation between stable angina and unstable angina :

Stable angina : if the chest pain occurs during in doing of certain activities, and it is dissapper by taking rest is called stable angina.

Unstable angina : if the chest pain occurs during in the rest period also and it does not disappear by taking rest also called unstable angina , it is severe or frequent and lasts longer.

Like this these two are different, but during in the chest pain due to vascular constriction there is no adequate oxygen supply leads to hypoxia, it is the same in between this.

Difference between ST elevated myocardial infarction and Non ST elevated myocardial infarction :

STEMI is due to sudden and complete blockage of coronary leads to decreased blood circulation and leads to myocardial infarction.

But in NON STEMI it is due to severely narrowed coronary artery but not completely blockage of the artery .

But both STEMI and NON STEMI leads to decreased blood circulation to the myocardium due to narrowing or blockage of coronary artery leads to myocardial infarction.

Diagnostic criteria :

* Electrocardiogram

* cardiac marker through blood test.

* creatine kinase

* cardiac specific troponin I and T.

* ISO enzyme of creatine kinase.

By performing all this tests we can diagnose the myocardium necrosis or infraction.