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Understanding Myocardial Infarction

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Questions and Answers

What is the consequence of the coronary arteries being occluded?

Tachycardia and angina

Hypertension and arrhythmia

Ischemia and infarction (correct)

Bradycardia and palpitations

What causes the occlusion of coronary arteries?

Presence of arrhythmias in the heart

Increased blood pressure in the heart

Rupture of atherosclerotic plaques forming clots (correct)

High levels of troponin in the blood

Which ECG changes are characteristic of a STEMI diagnosis?

T wave inversions and resolved ST elevation

Wide Q waves and arrhythmias

ST elevation and tall T waves (correct)

Atrial fibrillation and bradycardia

What is the key difference between angina and NSTEMIs?

Presence of ischemia only in angina Signup and view all the answers

When can Q wave changes occur acutely?

Within 24 hours Signup and view all the answers

What is the primary cause of ischemia?

Lack of blood supply causing dysfunction of tissue Signup and view all the answers

What is the difference between unstable angina and myocardial infarction?

Unstable angina is diagnosed by symptoms with NO rise in cardiac markers Signup and view all the answers

What is the term for chest pain caused by ischemia?

Angina Signup and view all the answers

What is the term for the death of heart muscle due to a lack of oxygen?

Myocardial infarction Signup and view all the answers

What is the difference between NSTEMI and STEMI?

STEMI has elevated ST segment, NSTEMI does not Signup and view all the answers