Question 1

An inferior MI is most often caused by occlusion of which coronary artery?

Accepted Answer

A) Right coronary artery 
B) Left main 
C) Circumflex 
D) Left anterior descending 
A) Right coronary artery 
B) Left main 
C) Circumflex 
D) Left anterior descending

Question 2

Indicative changes of a STEMI include which of the following?

Accepted Answer

A) ST segment elevation. 
B) ST segment depression. 
C) T wave flattening. 
D) Fish-hook in V₃. 
A) ST segment elevation. 
B) ST segment depression. 
C) T wave flattening. 
D) Fish-hook in V₃.

Question 3

Which kind of MI usually damages only the innermost layer of the myocardium?

Accepted Answer

A) NSTEMI 
B) Transmural 
C) Posterior 
D) Anteroseptal 
A) NSTEMI 
B) Transmural 
C) Posterior 
D) Anteroseptal

Question 4

If the transition zone is between V₁ and V₂,the EKG is said to have

Accepted Answer

A) malrotation. 
B) clockwise rotation. 
C) counterclockwise rotation. 
D) normal R wave progression. 
A) malrotation. 
B) clockwise rotation. 
C) counterclockwise rotation. 
D) normal R wave progression.

Question 5

Gwen is experiencing an acute STEMI and was taken by ambulance to a large metropolitan hospital with a cardiac center.Which of the following courses of treatment is Gwen MOST likely to receive in the 90 minutes following her arrival at the hospital?

Accepted Answer

A) Performance of an angiogram to determine the location of the coronary artery blockage 
B) Administration of antiplatelet and anticoagulant medications and beta blockers 
C) Administration of thrombolytics following tests to assess her bleeding risk 
D) Reperfusion via PCI and placement of a stent at the site of the blockage 
A) Performance of an angiogram to determine the location of the coronary artery blockage 
B) Administration of antiplatelet and anticoagulant medications and beta blockers 
C) Administration of thrombolytics following tests to assess her bleeding risk 
D) Reperfusion via PCI and placement of a stent at the site of the blockage

Question 6

-The coronary artery that feeds blood to the damaged area of the heart in Figure 21 is the

Accepted Answer

A) right coronary artery. 
B) left anterior descending. 
C) circumflex. 
D) popliteal. 
A) right coronary artery. 
B) left anterior descending. 
C) circumflex. 
D) popliteal.

Question 7

Which of the following EKG complications can be expected following an acute anterior STEMI?

Accepted Answer

A) Junctional bradycardia and third-degree AV block with narrow QRS 
B) Wenckebach and first degree AV block 
C) Mobitz II second degree AV block and right bundle branch block 
D) Sinus bradycardia and accelerated junctional rhythm 
A) Junctional bradycardia and third-degree AV block with narrow QRS 
B) Wenckebach and first degree AV block 
C) Mobitz II second degree AV block and right bundle branch block 
D) Sinus bradycardia and accelerated junctional rhythm

Question 8

-The MI in Figure 20 is

Accepted Answer

A) extensive anterior (anterior-lateral). 
B) posterior. 
C) lateral. 
D) inferior. 
A) extensive anterior (anterior-lateral). 
B) posterior. 
C) lateral. 
D) inferior.

Question 9

Counterclockwise rotation is indicated from R wave transition in V₁-2.

Accepted Answer

A) True 
 B)False

Question 10

Leads V₂-4 are inferior leads.

Accepted Answer

A) True 
 B)False

Question 11

Early repolarization often has a unique EKG finding that makes recognition easier.What is that finding?

Accepted Answer

The answer of Early repolarization often has a unique EKG...

Question 12

Ischemia is a reversible process.

Accepted Answer

A) True 
 B)False

Question 13

Inferior-lateral MI has indicative changes in leads ________.

Accepted Answer

The answer of Inferior-lateral MI has indicative changes in leads...

Question 14

Which of the following is indicative of myocardial injury?

Accepted Answer

A) ST elevation 
B) ST depression 
C) Significant Q wave 
D) Inverted T wave 
A) ST elevation 
B) ST depression 
C) Significant Q wave 
D) Inverted T wave

Question 15

Why are patients experiencing MI given nitroglycerin?

Accepted Answer

A) It dilates the narrowed coronary artery and allows more blood into the myocardium. 
B) It dissolves the blood clot causing the MI and reduces stresses on the heart. 
C) It decreases platelet aggregation and prevents growth of blood clots in the coronary artery. 
D) It improves the return of venous blood to the heart and helps prevent heart failure. 
A) It dilates the narrowed coronary artery and allows more blood into the myocardium. 
B) It dissolves the blood clot causing the MI and reduces stresses on the heart. 
C) It decreases platelet aggregation and prevents growth of blood clots in the coronary artery. 
D) It improves the return of venous blood to the heart and helps prevent heart failure.

Question 16

In a lateral wall MI,which coronary artery is occluded?

Accepted Answer

A) Right 
B) Left anterior descending 
C) Circumflex 
D) Aorta 
A) Right 
B) Left anterior descending 
C) Circumflex 
D) Aorta

An inferior MI is most often caused by occlusion of which coronary artery?

Indicative changes of a STEMI include which of the following?

Which kind of MI usually damages only the innermost layer of the myocardium?

If the transition zone is between V₁ and V₂,the EKG is said to have

Gwen is experiencing an acute STEMI and was taken by ambulance to a large metropolitan hospital with a cardiac center.Which of the following courses of treatment is Gwen MOST likely to receive in the 90 minutes following her arrival at the hospital?

-The coronary artery that feeds blood to the damaged area of the heart in Figure 21 is the

Which of the following EKG complications can be expected following an acute anterior STEMI?

-The MI in Figure 20 is

Counterclockwise rotation is indicated from R wave transition in V₁-2.

Leads V₂-4 are inferior leads.

Early repolarization often has a unique EKG finding that makes recognition easier.What is that finding?

Ischemia is a reversible process.

Inferior-lateral MI has indicative changes in leads ________.

Which of the following is indicative of myocardial injury?

Why are patients experiencing MI given nitroglycerin?

In a lateral wall MI,which coronary artery is occluded?

Cardiac Anatomy and Physiology

Electrophysiology

Lead Morphology and Placement

Technical Aspects of the EKG

Calculating Heart Rate

How to Interpret a Rhythm Strip

Rhythms Originating in the Sinus Node

Rhythms Originating in the Atria

Rhythms Originating in the AV Junction

Rhythms Originating in the Ventricles

AV Blocks

How to Interpret a 12-Lead EKG

Medications and Electrical Therapy

Diagnostic Electrocardiography

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Exam 14: Myocardial Infarction

An inferior MI is most often caused by occlusion of which coronary artery?

Indicative changes of a STEMI include which of the following?

Which kind of MI usually damages only the innermost layer of the myocardium?

If the transition zone is between V₁ and V₂,the EKG is said to have

Gwen is experiencing an acute STEMI and was taken by ambulance to a large metropolitan hospital with a cardiac center.Which of the following courses of treatment is Gwen MOST likely to receive in the 90 minutes following her arrival at the hospital?

-The coronary artery that feeds blood to the damaged area of the heart in Figure 21 is the

Which of the following EKG complications can be expected following an acute anterior STEMI?

-The MI in Figure 20 is

Counterclockwise rotation is indicated from R wave transition in V₁-2.

Leads V₂-4 are inferior leads.

Early repolarization often has a unique EKG finding that makes recognition easier.What is that finding?

Ischemia is a reversible process.

Inferior-lateral MI has indicative changes in leads ________.

Which of the following is indicative of myocardial injury?

Why are patients experiencing MI given nitroglycerin?

In a lateral wall MI,which coronary artery is occluded?

Cardiac Anatomy and Physiology

Electrophysiology

Lead Morphology and Placement

Technical Aspects of the EKG

Calculating Heart Rate

How to Interpret a Rhythm Strip

Rhythms Originating in the Sinus Node

Rhythms Originating in the Atria

Rhythms Originating in the AV Junction

Rhythms Originating in the Ventricles

AV Blocks

How to Interpret a 12-Lead EKG

Medications and Electrical Therapy

Diagnostic Electrocardiography

Filters