ATI LPN
100 Questions on the Cardiovascular System Questions
Question 1 of 5
During the cardiac cycle, the second heart sound is heard during:
Correct Answer: B
Rationale: The second heart sound occurs during ventricular relaxation when the semilunar valves close.
Question 2 of 5
A patient who has just been admitted with pulmonary edema is scheduled to receive the following medications. Which medication should the nurse question before giving?
Correct Answer: D
Rationale: Although carvedilol is appropriate for the treatment of chronic heart failure, it is not used for patients with acute decompensated heart failure (ADHF) because of the risk of worsening the heart failure. The other drugs are appropriate for the patient with ADHF.
Question 3 of 5
What is meant by the concept 'venous return mechanism'?
Correct Answer: A
Rationale: Venous return refers to blood movement back to the heart, facilitated by muscular activity and vessel mechanisms.
Question 4 of 5
Coronary vessels are found in:
Correct Answer: B
Rationale: Coronary vessels are primarily located in the epicardium, supplying blood to the myocardium.
Question 5 of 5
An increase in left atrial pressure is most likely to occur in which of the following heart murmurs?
Correct Answer: C
Rationale: Mitral regurgitation causes blood to flow back into the left atrium, increasing its pressure.