ATI LPN
Cardiovascular Questions Questions
Question 1 of 5
One day after moving into a new apartment, a 25-year-old man experiences acute onset of fever, cough, dyspnea, headache, and malaise. The symptoms subside over several days when he visits a friend in another city. On the day of his return he visits the physician. There are no remarkable findings on physical examination. A chest radiograph also is unremarkable. Which of the following is most likely to produce these findings?
Correct Answer: D
Rationale: Hypersensitivity pneumonitis (e.g., from mold exposure) causes transient symptoms like fever and cough, resolving upon removal from the antigen source, with histamine release driving inflammation.
Question 2 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 3 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 4 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.
Question 5 of 5
The human heart has four chambers.
Correct Answer: A
Rationale: The heart's four chambers—two atria and two ventricles—facilitate the separation of oxygenated and deoxygenated blood.