ATI LPN
Questions About the Cardiovascular System Questions
Question 1 of 5
Which of the following is not true of the pulmonary artery?
Correct Answer: B
Rationale: The pulmonary artery carries deoxygenated blood from the right ventricle to the lungs, not from the left ventricle.
Question 2 of 5
Depolarization of the ventricles is:
Correct Answer: A
Rationale: The QRS complex (often referred to as RS in simplified terms) on an ECG represents the depolarization of the ventricles, which initiates ventricular contraction.
Question 3 of 5
Following an acute myocardial infarction, a previously healthy 63-yr-old develops clinical manifestations of heart failure. The nurse anticipates discharge teaching will include information about
Correct Answer: D
Rationale: ACE inhibitor therapy is currently recommended to prevent the development of heart failure in patients who have had a myocardial infarction and as a first-line therapy for patients with chronic heart failure. Digoxin therapy for heart failure is no longer considered a first-line measure, and digoxin is added to the treatment protocol when therapy with other drugs such as ACE-inhibitors, diuretics, and β-adrenergic blockers is insufficient. Calcium channel blockers are not generally used in the treatment of heart failure. The β-adrenergic blockers are not used as initial therapy for new onset heart failure.
Question 4 of 5
Jodie Swallow is a top class female British Triathlete, and has a resting heart rate of 36 bpm. Give reasons why such an athlete might have a low resting heart rate.
Correct Answer: D
Rationale: Bradycardia in athletes results from increased stroke volume and cardiac efficiency, reducing the need for a high resting heart rate.
Question 5 of 5
Which of the following will grow faster than the other regions?
Correct Answer: B
Rationale: During embryonic development, the bulbus cordis and common ventricle grow rapidly to form the ventricles.