Insufficient blood flow in the coronary arteries to the heart is common in all of these
conditions except:
Select one:
a. arteriosclerosis.
b. atherosclerosis.
c. angina pectoris.
d. arrhythmias.
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The correct answer is: arrhythmias.
Question 2
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Identify an accurate statement about the nerve supply of the heart.
Select one:
a. The heart receives its nerve supply from only one division of the autonomic nervous
system, the sympathetic division.
b. The autonomic nervous system regulates the rate and force of the contractions of the
heart.
c. The norepinephrine released by the sympathetic nerves in the heart act on the sinoatrial
(SA) node to decrease heart rate.
d. The sympathetic nerves that innervate the heart become active when the body needs to
rest and conserve energy.
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,The correct answer is: The autonomic nervous system regulates the rate and force of the
contractions of the heart.
Question 3
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During the “fight or flight” reaction, sympathetic nerves become active and release _____.
Select one:
a. serotonin
b. gamma-aminobutyric acid
c. norepinephrine
d. acetylcholine
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The correct answer is: norepinephrine
Question 4
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Which of the following statements is true of angiotensin receptor blockers (ARBs)?
Select one:
,a. The effect of using ARBs is similar to the effect of using the ACE inhibitors except that
ARBs do not increase bradykinin.
b. The effect of using ARBs is similar to the effect of using the ACE inhibitors except that
ARBs do not decrease pre- and afterload.
c. The effect of using ARBs is similar to the effect of using the ACE inhibitors except that
ARBs do not increase cardiac output.
d. The effect of using ARBs is similar to the effect of using the ACE inhibitors except that
ARBs only decrease preload and not afterload.
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The correct answer is: The effect of using ARBs is similar to the effect of using the ACE
inhibitors except that ARBs do not increase bradykinin.
Question 5
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Which of the following loop diuretics has the shortest duration of action?
Select one:
a. Torsemide (Demadex)
b. Furosemide (Lasix)
c. Bumetanide (Bumex)
d. Eplerenone (Inspra)
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The correct answer is: Bumetanide (Bumex)
Question 6
Correct
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Question text
How do thiazides and loop diuretics differ in their mechanisms of action?
Select one:
a. They have different outcomes in the context of sodium retention.
b. They act at different sites in the kidney.
c. Thiazides are more potent than loop diuretics.
d. Thiazides cause hypokalemia, while loop diuretics cause hyperkalemia.
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The correct answer is: They act at different sites in the kidney.
Question 7
Correct
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Question text
Which of the following is true of Class 2 antiarrhythmic drugs?
Select one:
a. They tend to shorten the cardiac refractory period.
b. They increase the excitability, conduction, and automaticity of ventricular muscle.
conditions except:
Select one:
a. arteriosclerosis.
b. atherosclerosis.
c. angina pectoris.
d. arrhythmias.
Feedback
The correct answer is: arrhythmias.
Question 2
Correct
4.00 points out of 4.00
Flag question
Question text
Identify an accurate statement about the nerve supply of the heart.
Select one:
a. The heart receives its nerve supply from only one division of the autonomic nervous
system, the sympathetic division.
b. The autonomic nervous system regulates the rate and force of the contractions of the
heart.
c. The norepinephrine released by the sympathetic nerves in the heart act on the sinoatrial
(SA) node to decrease heart rate.
d. The sympathetic nerves that innervate the heart become active when the body needs to
rest and conserve energy.
Feedback
,The correct answer is: The autonomic nervous system regulates the rate and force of the
contractions of the heart.
Question 3
Correct
4.00 points out of 4.00
Flag question
Question text
During the “fight or flight” reaction, sympathetic nerves become active and release _____.
Select one:
a. serotonin
b. gamma-aminobutyric acid
c. norepinephrine
d. acetylcholine
Feedback
The correct answer is: norepinephrine
Question 4
Correct
4.00 points out of 4.00
Flag question
Question text
Which of the following statements is true of angiotensin receptor blockers (ARBs)?
Select one:
,a. The effect of using ARBs is similar to the effect of using the ACE inhibitors except that
ARBs do not increase bradykinin.
b. The effect of using ARBs is similar to the effect of using the ACE inhibitors except that
ARBs do not decrease pre- and afterload.
c. The effect of using ARBs is similar to the effect of using the ACE inhibitors except that
ARBs do not increase cardiac output.
d. The effect of using ARBs is similar to the effect of using the ACE inhibitors except that
ARBs only decrease preload and not afterload.
Feedback
The correct answer is: The effect of using ARBs is similar to the effect of using the ACE
inhibitors except that ARBs do not increase bradykinin.
Question 5
Incorrect
0.00 points out of 4.00
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Question text
Which of the following loop diuretics has the shortest duration of action?
Select one:
a. Torsemide (Demadex)
b. Furosemide (Lasix)
c. Bumetanide (Bumex)
d. Eplerenone (Inspra)
Feedback
The correct answer is: Bumetanide (Bumex)
Question 6
Correct
, 4.00 points out of 4.00
Flag question
Question text
How do thiazides and loop diuretics differ in their mechanisms of action?
Select one:
a. They have different outcomes in the context of sodium retention.
b. They act at different sites in the kidney.
c. Thiazides are more potent than loop diuretics.
d. Thiazides cause hypokalemia, while loop diuretics cause hyperkalemia.
Feedback
The correct answer is: They act at different sites in the kidney.
Question 7
Correct
4.00 points out of 4.00
Flag question
Question text
Which of the following is true of Class 2 antiarrhythmic drugs?
Select one:
a. They tend to shorten the cardiac refractory period.
b. They increase the excitability, conduction, and automaticity of ventricular muscle.
