ATI RN
ATI Pharmacology Test Bank
1. A client with deep vein thrombosis has been on heparin continuous infusion for 5 days. The provider prescribes warfarin PO without discontinuing the heparin. The client asks the nurse why both anticoagulants are necessary. Which of the following statements should the nurse make?
- A. Warfarin takes several days to work, so the IV heparin will be used until the warfarin reaches a therapeutic level.
- B. I will call the provider to get a prescription for discontinuing the IV heparin today.
- C. Both heparin and warfarin work together to dissolve the clots.
- D. The IV heparin increases the effects of the warfarin and decreases the length of your hospital stay.
Correct answer: A
Rationale: The correct answer is A because warfarin takes several days to reach a therapeutic level and exert its full anticoagulant effect. During this time, the IV heparin is continued to prevent clotting until the warfarin is effective. Both medications are used together temporarily for this reason. Discontinuing heparin prematurely can increase the risk of clot formation. Therefore, the nurse should explain to the client that the IV heparin will be continued until the warfarin reaches a therapeutic level.
2. A healthcare professional is providing discharge instructions to a client who has a new prescription for Furosemide. Which of the following instructions should the healthcare professional include?
- A. Take the medication with breakfast.
- B. Increase intake of foods high in potassium.
- C. Avoid prolonged sun exposure.
- D. Limit sodium intake.
Correct answer: B
Rationale: The correct answer is B: 'Increase intake of foods high in potassium.' Furosemide, a loop diuretic, can cause potassium depletion. The healthcare professional should instruct the client to increase the intake of foods high in potassium to prevent hypokalemia, a potential side effect of Furosemide therapy. Choice A is incorrect as Furosemide is usually recommended to be taken in the morning to prevent nocturia. Choice C is unrelated to the side effects of Furosemide. Choice D, while important for overall health, is not directly related to the side effects of Furosemide.
3. A client with angina is being taught how to use nitroglycerin transdermal ointment. Which instruction should the nurse include?
- A. Remove the prior dose before applying a new dose.
- B. Rub the ointment directly into the skin until it is no longer visible.
- C. Cover the applied ointment with a clean gauze pad.
- D. Apply the ointment to the same skin area each time.
Correct answer: A
Rationale: The correct instruction is to remove the prior dose before applying a new one to prevent toxicity. Nitroglycerin ointment can cause adverse effects if accumulated doses are not removed. Rubbing the ointment until it's not visible or covering it with gauze may alter absorption. Applying it to the same area each time can lead to skin irritation or desensitization.
4. A client is prescribed Omeprazole for managing heartburn. What information should the nurse include in the teaching?
- A. Take this medication at bedtime.
- B. This medication decreases the production of gastric acid.
- C. Take this medication 2 hours after eating.
- D. This medication can cause hyperkalemia.
Correct answer: B
Rationale: The correct answer is B. The nurse should educate the client that Omeprazole works by reducing the production of gastric acid through inhibiting the enzyme responsible for its production. This action helps in managing heartburn and related symptoms effectively. Choice A is incorrect because Omeprazole is usually taken before eating. Choice C is incorrect as Omeprazole is typically taken before a meal. Choice D is unrelated to Omeprazole, as it is not associated with causing hyperkalemia.
5. A client has a new prescription for Valsartan. Which of the following adverse effects should the nurse monitor?
- A. Hyperkalemia
- B. Hypoglycemia
- C. Bradycardia
- D. Hypercalcemia
Correct answer: A
Rationale: Corrected Rationale: Valsartan is an angiotensin II receptor blocker (ARB) that can cause hyperkalemia by affecting the renin-angiotensin-aldosterone system. The nurse should closely monitor the client's potassium levels due to the risk of hyperkalemia, which can lead to serious cardiac complications. Choice B, hypoglycemia, is not a common adverse effect of Valsartan. Choice C, bradycardia, is not directly associated with Valsartan use. Choice D, hypercalcemia, is not a typical adverse effect of Valsartan.
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