ATI RN
ATI Pharmacology
1. A healthcare provider in a clinic is monitoring serum electrolytes for four older adult clients who take digoxin. Which of the following electrolyte values increases a client's risk for Digoxin toxicity?
- A. Calcium 9.2 mg/dL
- B. Calcium 10.3 mg/dL
- C. Potassium 3.4 mEq/L
- D. Potassium 4.8 mEq/L
Correct answer: C
Rationale: Potassium 3.4 mEq/L is below the expected reference range, which increases the risk for digoxin toxicity. Low potassium levels can lead to fatal dysrhythmias, particularly in older clients taking Digoxin. Hypokalemia potentiates the effects of Digoxin, making the heart more sensitive to its toxic effects. Monitoring and correcting electrolyte imbalances, especially low potassium levels, are crucial to prevent adverse effects of digoxin therapy. Calcium levels do not directly influence digoxin toxicity, so choices A and B are incorrect. High potassium levels, as in choice D, are less likely to increase the risk of digoxin toxicity compared to low potassium levels.
2. When educating a client who has a new prescription for Levothyroxine to treat hypothyroidism, which of the following instructions should be included?
- A. Take the medication first thing in the morning before eating.
- B. Take the medication at bedtime to avoid drowsiness.
- C. Take the medication with food to prevent nausea.
- D. Take the medication with a glass of milk.
Correct answer: A
Rationale: Levothyroxine should be taken first thing in the morning before eating to ensure optimal absorption. Taking it on an empty stomach helps prevent interactions with food or other medications that may decrease its effectiveness. It is important to follow this timing recommendation to maintain consistent thyroid hormone levels in the body. Choice B is incorrect as taking Levothyroxine at bedtime may lead to inconsistent absorption and affect its efficacy. Choice C is incorrect because taking Levothyroxine with food can interfere with its absorption. Choice D is incorrect as Levothyroxine should be taken with a full glass of water, not milk, to aid in proper absorption.
3. A client is receiving discharge instructions for a new prescription of Warfarin. Which of the following over-the-counter medications should the client be instructed to avoid?
- A. Acetaminophen
- B. Ibuprofen
- C. Diphenhydramine
- D. Loratadine
Correct answer: B
Rationale: The correct answer is B: Ibuprofen. Ibuprofen is a nonsteroidal anti-inflammatory drug (NSAID) that can increase the risk of bleeding when taken with Warfarin due to its antiplatelet effects. Patients on Warfarin should avoid NSAIDs like Ibuprofen and opt for alternative pain relief options to prevent potential complications such as an increased risk of bleeding. Acetaminophen (Choice A), Diphenhydramine (Choice C), and Loratadine (Choice D) are not known to significantly interact with Warfarin in terms of bleeding risk and are generally considered safe to use alongside Warfarin.
4. A client is being discharged with a new prescription for Clopidogrel. Which of the following instructions should the nurse include?
- A. Avoid taking aspirin while on this medication.
- B. Take this medication with food.
- C. Avoid eating foods high in potassium.
- D. Take this medication at bedtime.
Correct answer: A
Rationale: The correct instruction for a client prescribed Clopidogrel is to avoid taking aspirin while on this medication. Clopidogrel is an antiplatelet medication that can increase the risk of bleeding. Aspirin and other NSAIDs can potentiate the risk of bleeding, so they should be avoided while taking Clopidogrel to prevent adverse effects. Choices B, C, and D are incorrect because Clopidogrel does not need to be taken with food, there is no specific dietary restriction related to potassium, and the timing of administration (bedtime) is not a critical instruction for this medication.
5. A client has anemia and a new prescription for ferrous sulfate liquid. Which of the following instructions should the nurse provide?
- A. Take the medication on an empty stomach to decrease gastrointestinal irritation.
- B. Take the medication with orange juice to enhance absorption.
- C. Take the medication with milk.
- D. Rinse the mouth before taking the iron.
Correct answer: B
Rationale: Taking ferrous sulfate with orange juice can help increase the absorption of iron. Orange juice contains vitamin C, which aids in the absorption of iron from the medication. This combination can enhance the effectiveness of the iron supplement for a client with anemia. Option A is incorrect because taking iron on an empty stomach can cause gastrointestinal upset. Option C is incorrect because calcium in milk can inhibit iron absorption. Option D is irrelevant to enhancing iron absorption.
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