Practice Quiz - Alt Of Cardio Function 2

Question 1

Which of the following statements is the best definition of cardiac output?

Answer 1

Cardiac output is the volume of blood pumped by the left ventricle in a minute

Question 2

Which of the following statements is the best definition of preload?

Answer 2

The pressure of the blood in the ventricle at the end of diastole

Question 3

One factor that would increase left ventricular afterload is:

Answer 3

Primary hypertension

Question 4

An effect of beta-1 receptor stimulation is to :

Answer 4

Increase heart rate

Question 5

Rheumatic fever and bacterial endocarditis can both cause valve stenosis and regurgitation

Answer 5

True

Question 6

Aortic stenosis

Answer 6

Reduction in blood flow through the aortic valve during systole

Question 7

Aortic regurgitation

Answer 7

Regurgitation of blood into the left ventricle during diastole

Question 8

Mitral stenosis

Answer 8

Reduction in blood flow through the mitral valve during diastole

Question 9

Mitral regurgitation

Answer 9

Regurgitation of blood into the left atrium during systole

Question 10

Aortic stenosis results in an increase in:

Answer 10

Left ventricular afterload

Question 11

How does activation of the sympathetic nervous system help the body maintain blood pressure in left ventricular failure (LVF)?

Answer 11

Norepinephrine stimulates alpha-1 receptors which results in arterial vasoconstriction

Question 12

What is the main cause of fluid retention in left ventricular failure (LVF)?

Answer 12

Release of aldosterone

Question 13

What is the most common cause of left ventricular failure that is systolic in nature?

Answer 13

Coronary artery disease leading to myocardial ischemia

Question 14

Why does long term primary (systemic) hypertension eventually lead to left ventricular failure?

Answer 14

Increased afterload leads to left ventricular hypertrophy and diastolic dysfunction

Question 15

Mitral stenosis causes all of the problems except:

Answer 15

Right ventricular hypertrophy

Question 16

In left ventricular failure, the symptoms or tachypnea, dyspnea and cough are related to :

Answer 16

Pulmonary edema

Question 17

Patients with left ventricular failure often have cool hands and feet. Which of the following statements best describes the pathophysiology underlying this clinical manifestation?

Answer 17

The effects of alpha-1 receptors causes vasoconstriction of the peripheral arteries and arterioles