Quiz 3 Module 3+ 4 review

Question 1

Which mechanical event does S2 (dub) sound represent?

Answer 1

AV/PV closure at the end of systole

Question 2

What is the most likely cause for the change in the ECG labelled ST depression seen below

Answer 2

Myocardial ischemia is occurring

Question 3

Which heart sound are normally heard in the healthy heart?

Answer 3

S1 and S2

Question 4

At which length of time is a QRS complex considered to be prolonged?

Answer 4

120 ms

Question 5

Which heart sound is caused by the increased volume of blood in the ventricle when the MV opens?

Answer 5

S3

Question 6

Which of the following echo presentations is closely tied to a bundle branch block?

Answer 6

Paradoxical septal motion

Question 7

Choose the answer below which best explains the purpose/ purposes of performing cardiac auscultation?

1. Used as a screening tool to diagnose a murmur which is then quantified/ confirmed with an echocardiogram
2. Correlate a murmur with the findings of a previous echocardiogram
3. All of these choices are correct
4. Tract the progression of valvular heart disease

Answer 7

All of these choices are correct

Question 8

Which of the following arrhythmias commonly causes and is caused by left atrial enlargement?

1. Left bundle block
2. Atrial fibrillation
3. Bigeminy
4. Mobitz 2 block

Answer 8

Atrial fibrillation

Question 9

Which mechanical events does S1 (LUB) represent?

Answer 9

MV/TV closure at the beginning of systole

Question 10

What rhythm is present in the ECG below?

Answer 10

Atrial fibrillation

Question 11

What change occurs to the timing of A2 and P2 in the presence of intracardiac shunt?

Answer 11

The gap between A2 and P2 widens

Question 12

What rhythm is present in the ECG below?

Answer 12

Atrial flutter

Question 13

Which heart sound is caused by the atria contracting and forcing blood into a stiff ventricle?

Answer 13

S4

Question 14

What rhythm is present in the ECG below?

Answer 14

3rd degree AV block

Question 15

Choose the answer which most likely describes a murmur with the qualities listed below?

3/6 decrescendo murmur heard best along the right parasternal border

1. Pulmonic stenosis
2. Aortic regurgitation
3. Aortic stenosis
4. Tricuspid regurgitation

Answer 15

Aortic regurgitation

Question 16

What affect would myocardial ischemia have on the ECG?

Answer 16

The ST segment becomes depressed

Question 17

Which valve murmur is best heard at the apex?

Answer 17

MV

Question 18

What is the main abnormality present in the ECG below?

Answer 18

Right bundle branch block

Question 19

Which of the following would result in a diastolic murmur at the apex?

Answer 19

Mitral stenosis

Question 20

Which pathology can produce a “rub” type murmur?

Answer 20

Pericarditis