ATI RN
ATI Proctored Pharmacology 2023
1. When should Montelukast be taken?
- A. At least two hours before exercise
- B. Daily in the evening
- C. Two hours before exercise or daily in the evening
- D. None of the above
Correct answer: B
Rationale: Montelukast should be taken daily in the evening to effectively manage asthma symptoms. Taking it at the same time each day helps maintain a consistent level of the medication in the body, providing optimal control over asthma symptoms and inflammation. Choice A is incorrect because Montelukast should not be taken specifically before exercise, but rather daily. Choice C is incorrect because although taking Montelukast two hours before exercise is not necessary, taking it daily in the evening is essential for its effectiveness. Choice D is incorrect as Montelukast should be taken daily to manage asthma.
2. Which of the following diuretics inhibits sodium reabsorption in the kidneys while sparing K+ and hydrogen ions?
- A. Spironolactone
- B. Furosemide
- C. Hydrochlorothiazide
- D. Bumetanide
Correct answer: A
Rationale: Spironolactone is the correct answer as it is classified as a potassium-sparing diuretic. It works by inhibiting sodium reabsorption in the kidneys while promoting the retention of potassium and hydrogen ions. This mechanism of action helps in reducing fluid retention without causing excessive loss of potassium, which is a common side effect of other diuretics. Furosemide (choice B), Hydrochlorothiazide (choice C), and Bumetanide (choice D) are not correct as they are not potassium-sparing diuretics. Furosemide and Bumetanide are loop diuretics that inhibit sodium, potassium, and chloride reabsorption in the loop of Henle. Hydrochlorothiazide is a thiazide diuretic that inhibits sodium and chloride reabsorption in the distal convoluted tubule, leading to potassium loss.
3. A client is prescribed Lithium. Which of the following laboratory values should be monitored to assess for potential toxicity?
- A. Serum sodium
- B. Serum lithium
- C. Serum potassium
- D. Serum calcium
Correct answer: B
Rationale: When a client is prescribed Lithium, monitoring serum lithium levels is crucial to ensure they remain within the therapeutic range and to assess for potential toxicity. Monitoring serum lithium levels helps prevent adverse effects associated with lithium toxicity, such as nausea, vomiting, diarrhea, tremors, and confusion.
4. A nurse is teaching a client who has a new prescription for Hydralazine. Which of the following adverse effects should the nurse instruct the client to monitor?
- A. Tachycardia
- B. Hyperglycemia
- C. Hyponatremia
- D. Constipation
Correct answer: A
Rationale: Corrected Rationale: Hydralazine is a vasodilator that can cause reflex tachycardia as an adverse effect. The client should monitor their pulse and report any significant increases. Choice B, Hyperglycemia, is not a common adverse effect of Hydralazine. Choice C, Hyponatremia, and Choice D, Constipation, are also not typically associated with Hydralazine use.
5. A client has a new prescription for Furosemide to treat heart failure. Which of the following laboratory results should the nurse monitor?
- A. Potassium level
- B. Sodium level
- C. Hemoglobin A1C
- D. BUN
Correct answer: A
Rationale: The nurse should monitor the client's potassium levels when taking Furosemide because the medication can lead to hypokalemia. Hypokalemia is a potential side effect of Furosemide, a loop diuretic, due to increased potassium excretion in the urine. Monitoring potassium levels is crucial to prevent complications such as cardiac dysrhythmias associated with low potassium levels. Therefore, choices B (Sodium level), C (Hemoglobin A1C), and D (BUN) are incorrect as they are not directly influenced by Furosemide therapy for heart failure.
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