ATI LPN
Cardiovascular MCQ Questions Questions
Question 1 of 5
The SA node discharges at 0.00 seconds, when will the action potential normally arrive at the epicardial surface at the base of the left ventricle?
Correct Answer: A
Rationale: The action potential reaches the epicardial base of the left ventricle in about 0.22 seconds via Purkinje fibers.
Question 2 of 5
Which of the following is an indication of infective endocarditis?
Correct Answer: D
Rationale: All listed signs—splinter hemorrhages, petechiae, and Osler's nodes—are classic for infective endocarditis.
Question 3 of 5
Which of the following is considered a high-risk factor to develop hypercoagulability?
Correct Answer: B
Rationale: Nephrotic syndrome increases hypercoagulability by losing antithrombin III in urine.
Question 4 of 5
A 71-year-old female has been treated for hyperlipidemia by Pravastatin for the past 6 months. Her physician wanted to add an additional agent to block the absorption of exogenous cholesterol. Which of the following is the best choice?
Correct Answer: D
Rationale: Ezetimibe blocks intestinal cholesterol absorption.
Question 5 of 5
A 72-year-old male presented to the primary clinic complaining of chest tightness and pressure that is increasing in severity and frequency. His current medication includes atenolol, lisinopril, and nitroglycerin. Which intervention is most appropriate in his case?
Correct Answer: D
Rationale: Increasing severity suggests unstable angina, warranting urgent ER evaluation.