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 nurse is teaching a client who has a new prescription for Atenolol. Which of the following adverse effects should the nurse instruct the client to monitor?
- A. Tachycardia
- B. Hypoglycemia
- C. Bradycardia
- D. Hypertension
Correct answer: C
Rationale: Atenolol is a beta-blocker that can cause bradycardia as an adverse effect. The client should monitor their pulse regularly and report any significant decreases.
3. A client has a prescription for Alendronate. Which of the following instructions should the nurse include?
- A. Take this medication before bed.
- B. Take the medication with food.
- C. Sit upright for at least 30 minutes after taking the medication.
- D. Expect to have frequent headaches while on this medication.
Correct answer: C
Rationale: The correct instruction for a client prescribed Alendronate is to sit upright for at least 30 minutes after taking the medication. Alendronate can cause esophageal irritation, and maintaining an upright position helps prevent this adverse effect by reducing the risk of reflux of the medication into the esophagus. Choice A is incorrect because Alendronate should be taken in the morning, at least 30 minutes before the first food, beverage, or medication of the day with a full glass of plain water. Choice B is incorrect because Alendronate should not be taken with food. Choice D is incorrect because frequent headaches are not a common side effect of Alendronate.
4. When taking Digoxin, low levels of what can cause toxicity?
- A. Potassium
- B. Calcium
- C. Sodium
- D. Magnesium
Correct answer: A
Rationale: Low potassium levels can lead to Digoxin toxicity. Digoxin competes with potassium for binding sites on the sodium-potassium pump. When potassium levels are low, there is an increased risk of Digoxin binding and toxicity. Choice B (Calcium) is incorrect because low calcium levels are not directly linked to Digoxin toxicity. Choice C (Sodium) is incorrect as low sodium levels do not cause Digoxin toxicity. Choice D (Magnesium) is incorrect as low magnesium levels do not contribute to Digoxin toxicity.
5. A client has a new prescription for Etanercept for Rheumatoid Arthritis. Which of the following statements by the client indicates an understanding of the teaching?
- A. I will need to get my blood drawn periodically while on this medication.
- B. I should stop taking this medication if I develop a rash.
- C. I will need to limit my alcohol intake to no more than one drink per week.
- D. I should self-administer this medication subcutaneously.
Correct answer: A
Rationale: The correct answer is A because Etanercept can cause bone marrow suppression, so it is crucial to monitor blood counts regularly to detect any early signs of adverse effects.
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