ATI LPN
Cardiovascular NCLEX Questions Questions
Question 1 of 5
What enzyme, or combination of enzymes, protects cells against superoxide generated in oxidation reactions?
Correct Answer: C
Rationale: Superoxide dismutase converts superoxide to H2O2, which catalase then breaks down to water.
Question 2 of 5
Which one of the following can be used in male patients with erectile dysfunction?
Correct Answer: D
Rationale: Yohimbine, an alpha-2 antagonist, can improve erectile dysfunction.
Question 3 of 5
A 45-year-old man was just started anti-hypertensive therapy and then developed a persistent dry cough. Which of the following drugs could cause this side effect?
Correct Answer: A
Rationale: Enalapril, an ACE inhibitor, commonly causes a dry cough.
Question 4 of 5
A 64-year-old man is brought to the ER complaining of crushing chest pain radiating to his left arm. He is admitted, stabilized, and treated for acute myocardial infarction. Later, he developed ventricular tachycardia and is treated with antiarrhythmic drug. After a week of antiarrhythmic treatment, he began having difficulty breathing. A chest X-ray reveals pulmonary fibrosis. Which antiarrhythmic drug was he taking?
Correct Answer: A
Rationale: Amiodarone can cause pulmonary fibrosis as a side effect.
Question 5 of 5
An increase in heart rate by the sympathetic nervous system is a____
Correct Answer: C
Rationale: A positive chronotropic effect increases heart rate due to enhanced activity of the sympathetic nervous system.