ATI RN
ATI Pharmacology Proctored Exam 2023
1. A client has a new prescription for hydrochlorothiazide. The client should monitor for which of the following adverse effects?
- A. Hyponatremia
- B. Ototoxicity
- C. Hypoglycemia
- D. Hyperkalemia
Correct answer: A
Rationale: Hyponatremia is a potential adverse effect of hydrochlorothiazide due to its diuretic action. Hydrochlorothiazide is a thiazide diuretic that can cause sodium and water loss, potentially leading to hyponatremia. Monitoring for symptoms such as weakness, confusion, and muscle cramps can help detect hyponatremia early. Ototoxicity (choice B) is not a common adverse effect of hydrochlorothiazide. Hypoglycemia (choice C) is not typically associated with hydrochlorothiazide use. Hyperkalemia (choice D) is more commonly associated with potassium-sparing diuretics rather than thiazide diuretics like hydrochlorothiazide.
2. A client is starting therapy with paclitaxel. Which of the following adverse effects should the nurse instruct the client to monitor?
- A. Bradycardia
- B. Diarrhea
- C. Neutropenia
- D. Urinary retention
Correct answer: C
Rationale: Neutropenia is a common adverse effect of paclitaxel due to bone marrow suppression. Clients should be instructed to monitor for signs of infection and report any symptoms such as fever, chills, or sore throat immediately to their healthcare provider.
3. A client has a new prescription for Lovastatin. Which of the following instructions should be included?
- A. Take this medication on an empty stomach.
- B. Take this medication in the morning.
- C. Take this medication at bedtime.
- D. Increase your intake of potassium-rich foods.
Correct answer: C
Rationale: Lovastatin should be taken at bedtime because cholesterol production in the liver is highest at night, making the medication more effective in reducing cholesterol levels. By taking it at bedtime, the medication aligns with the body's natural rhythm of cholesterol synthesis, optimizing its therapeutic effects.
4. A healthcare provider is educating a client who has a new prescription for Simvastatin. Which of the following instructions should the healthcare provider include?
- A. Take this medication with food.
- B. Avoid drinking grapefruit juice.
- C. Take this medication in the morning.
- D. Increase your intake of potassium-rich foods.
Correct answer: B
Rationale: The correct instruction that the healthcare provider should include is to 'Avoid drinking grapefruit juice.' Grapefruit juice can increase the blood levels of Simvastatin, leading to potential side effects like muscle pain and liver damage. Instructing the client to avoid grapefruit juice helps prevent these adverse effects and ensures the medication's efficacy. Choices A, C, and D are incorrect because taking Simvastatin with food, at a specific time, or increasing potassium-rich foods intake are not essential instructions for this medication.
5. 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.
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