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. A client is starting a new prescription for levothyroxine. Which of the following instructions should the nurse include?
- A. Take the medication at bedtime.
- B. Take the medication with food.
- C. Take the medication first thing in the morning on an empty stomach.
- D. Take the medication with a full glass of milk.
Correct answer: C
Rationale: The correct instruction for taking levothyroxine is to take the medication first thing in the morning on an empty stomach. This timing is important for optimal absorption of the medication. Taking levothyroxine with food or at bedtime can interfere with its absorption. Milk and other foods, as well as certain medications, can reduce the effectiveness of levothyroxine by interfering with its absorption, so it should be taken separately from these items. Therefore, the correct choice is to take the medication first thing in the morning on an empty stomach.
3. A client taking nitroglycerin (Nitrostat) complains of a headache. Which conclusion is most appropriate by the nurse?
- A. A headache indicates a serious allergic reaction to nitroglycerin.
- B. The client will not have a headache if the nitroglycerin is taken with a high-fat meal.
- C. Nitroglycerin does not cause a headache.
- D. The most common side effect of nitroglycerin is a headache.
Correct answer: D
Rationale: Nitroglycerin is known to cause headaches as a common side effect due to its vasodilatory properties. It dilates blood vessels, which can lead to headaches. While a headache can indicate other serious conditions, the most common association with nitroglycerin use is a headache. It is crucial for the nurse to recognize this side effect and provide appropriate education and support to the client.
4. When starting therapy with cisplatin, a client should report which of the following adverse effects as instructed by the nurse?
- A. Tinnitus
- B. Nausea
- C. Constipation
- D. Weight gain
Correct answer: A
Rationale: The nurse should instruct the client to report tinnitus because it can be an indication of ototoxicity, a potential adverse effect of cisplatin. Ototoxicity can manifest as tinnitus, hearing loss, or balance disturbances, so it is crucial for the client to promptly report any changes in hearing such as tinnitus to prevent further damage.
5. A client has a new prescription for Calcitonin-salmon for postmenopausal osteoporosis. Which of the following instructions should the nurse include in the teaching?
- A. Swallow tablets on an empty stomach with plenty of water.
- B. Watch for skin rash and redness when applying calcitonin-salmon topically.
- C. Mix the liquid medication with juice and take it after meals.
- D. Alternate nostrils each time calcitonin-salmon is inhaled.
Correct answer: D
Rationale: Calcitonin-salmon is commonly administered intranasally for postmenopausal osteoporosis. It is essential to alternate nostrils daily when inhaling the medication to ensure equal distribution and optimal absorption. This technique helps prevent irritation and congestion in one nostril and enhances the effectiveness of the medication. Choices A, B, and C are incorrect because calcitonin-salmon is not swallowed, applied topically, or taken as a liquid medication after meals. Therefore, instructing the client to alternate nostrils during inhalation is the most appropriate teaching for this medication.
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