ATI RN
Cardiovascular System Test Bank Questions
Question 1 of 5
The client is taking an ACE inhibitor. The nurse explains to the client that this drug acts how?
Correct Answer: B
Rationale: The correct answer is B because ACE inhibitors block the conversion of angiotensin I to angiotensin II, leading to vasodilation and decreased blood pressure. Option A is incorrect as calcium channel blockers are a different class of drugs. Option C is incorrect as ACE inhibitors do not have a direct inotropic effect on the heart. Option D is incorrect as ACE inhibitors do not have a direct effect on heart rate.
Question 2 of 5
The client is being switched from warfarin to Pradaxa. What does the nurse look for as an indication to give the Pradaxa?
Correct Answer: D
Rationale: Rationale: The correct answer is D. Pradaxa, a direct oral anticoagulant, can be given 2 days after stopping warfarin to prevent overlapping anticoagulation effects. This allows for a smooth transition without increasing the risk of bleeding. Choices A, B, and C are incorrect because A) waiting for the INR to normalize may lead to a delay in starting Pradaxa, B) stopping warfarin alone does not indicate the appropriate timing for starting Pradaxa, and C) waiting for the INR to be less than 2 is not specific to initiating Pradaxa.
Question 3 of 5
The client is experiencing a drug-drug interaction with streptokinase and another drug. Which other drug can cause a drug- drug interaction with streptokinase?
Correct Answer: C
Rationale: The correct answer is C: Heparin. Streptokinase is a thrombolytic agent used to dissolve blood clots, while Heparin is an anticoagulant that prevents blood clot formation. When used together, they can increase the risk of bleeding due to their combined anticoagulant effects. Cimetidine (A), Theophylline (B), and Digoxin (D) do not typically interact with streptokinase in the same way as Heparin. This is because they have different mechanisms of action and do not directly affect the clotting process.
Question 4 of 5
The nurse is educating a client who has just been started on Zetia (exetimibe). What does the nurse say to educate the client?
Correct Answer: B
Rationale: The correct answer is B because Zetia interacts with bile acid sequestrants, affecting its absorption. By taking it 2 hours before or 4 hours after a bile acid sequestrant, the absorption of Zetia is maximized. Choice A is incorrect as Zetia can be taken with or without food. Choice C is incorrect as there is no specific interaction with milk. Choice D is incorrect as Zetia can be taken with a statin drug, but the dosing may need to be adjusted based on individual patient factors.
Question 5 of 5
The client is having a standard electrocardiogram. The nurse knows that the QT segment represents what?
Correct Answer: B
Rationale: The correct answer is B because the QT segment on an electrocardiogram represents the total time for ventricular depolarization and repolarization. This segment includes the time from the beginning of ventricular depolarization to the end of ventricular repolarization. Choices A, C, and D are incorrect because the QT segment specifically reflects the electrical activity of the ventricles, not the atria. Additionally, choice D is incorrect as it only refers to ventricular depolarization, not the entire process of ventricular repolarization as well.