ATI RN
ATI Pharmacology Proctored Exam
1. A healthcare provider is reviewing a client's medical history and notes that the client has a prescription for Digoxin. Which of the following findings is a manifestation of Digoxin toxicity?
- A. Elevated blood pressure
- B. Bradycardia
- C. Yellow-tinged vision
- D. Ringing in the ears
Correct answer: C
Rationale: Yellow-tinged vision, along with nausea, vomiting, and confusion, are common manifestations of Digoxin toxicity. Visual disturbances are important to recognize as they can indicate the need for immediate medical attention and potential adjustment of Digoxin therapy to prevent serious complications. Elevated blood pressure is not typically associated with Digoxin toxicity; instead, hypotension may occur. Bradycardia is a common therapeutic effect of Digoxin rather than a sign of toxicity. Ringing in the ears, or tinnitus, is also a potential side effect of Digoxin but is less specific to toxicity compared to yellow-tinged vision.
2. A client has a new prescription for Iron supplements. Which of the following instructions should be included?
- A. Take the medication with a glass of milk.
- B. Avoid taking the medication with orange juice.
- C. Increase fiber intake to prevent constipation.
- D. Expect stools to be bright red.
Correct answer: C
Rationale: The correct answer is C: 'Increase fiber intake to prevent constipation.' Iron supplements commonly cause constipation as a side effect. Increasing fiber intake can help alleviate this issue by promoting regular bowel movements and preventing constipation. Choice A is incorrect as iron absorption is hindered when taken with milk. Choice B is not directly related to iron supplements. Choice D is incorrect as iron supplements do not typically cause bright red stools.
3. A client has a new prescription for Warfarin. The nurse should identify that the concurrent use of which of the following medications increases the client's risk of bleeding?
- A. Vitamin K
- B. Calcium carbonate
- C. Acetaminophen
- D. Ranitidine
Correct answer: C
Rationale: The correct answer is Acetaminophen. Acetaminophen, especially in high doses, can increase the risk of bleeding in clients taking warfarin. Warfarin works by inhibiting the clotting factors dependent on vitamin K, so Vitamin K intake should be consistent but not excessive. Calcium carbonate and ranitidine do not significantly increase the risk of bleeding when used concurrently with Warfarin.
4. A client prescribed Warfarin is receiving discharge instructions from a nurse. Which of the following herbal supplements should the nurse instruct the client to avoid?
- A. St. John's wort
- B. Echinacea
- C. Garlic
- D. Ginseng
Correct answer: A
Rationale: St. John's wort can reduce the effectiveness of Warfarin by interacting with its metabolism pathways, potentially leading to decreased anticoagulant effects. Therefore, clients on Warfarin therapy should avoid St. John's wort. While echinacea, garlic, and ginseng are also herbal supplements that can interact with Warfarin, St. John's wort is particularly known for its significant impact on Warfarin metabolism. Echinacea may increase the risk of bleeding when taken with Warfarin, garlic may potentiate the anticoagulant effects of Warfarin, and ginseng may also increase the risk of bleeding. However, St. John's wort is the most crucial to avoid due to its significant impact on Warfarin metabolism.
5. A client with heart failure is receiving instructions about laxative use. The client should be advised to avoid which of the following laxatives?
- A. Sodium phosphate
- B. Psyllium
- C. Bisacodyl
- D. Polyethylene glycol
Correct answer: A
Rationale: Clients with heart failure often have sodium restrictions. Sodium phosphate can lead to fluid retention due to sodium absorption, which is harmful for individuals with heart failure. Therefore, it should be avoided in this population to prevent exacerbating fluid overload. Psyllium, Bisacodyl, and Polyethylene glycol are safer options for individuals with heart failure as they do not pose the risk of exacerbating fluid overload through sodium retention.
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