ATI LPN
Cardiovascular Questions Questions
Question 1 of 5
The most important factor for stretching cardiac muscle is ___
Correct Answer: C
Rationale: End diastolic volume determines the degree of stretch on cardiac muscle fibers prior to contraction, influencing stroke volume via the Frank-Starling law.
Question 2 of 5
Which medication would the nurse recognize as increasing the patient's risk for hypokalemia?
Correct Answer: B
Rationale: Bumetanide is a loop diuretic. Hypokalemia is a common adverse effect of this medication.
Question 3 of 5
After receiving oxygen from the lungs, blood returns to the heart through the left
Correct Answer: A
Rationale: Oxygenated blood from the lungs enters the left atrium via the pulmonary veins.
Question 4 of 5
What is the nurse's priority action when preparing to administer quinidine to a client with atrial fibrillation?
Correct Answer: B
Rationale: Quinidine can prolong the QT interval, increasing the risk of torsades de pointes.
Question 5 of 5
What is the therapeutic goal of beta-blocker therapy in heart failure?
Correct Answer: C
Rationale: Beta-blockers reduce myocardial workload by lowering heart rate and oxygen demand.