ATI RN
ATI Pharmacology Quizlet
1. A client has a new prescription for allopurinol. Which of the following instructions should the nurse include?
- A. Drink 2 liters of water daily.
- B. Avoid taking the medication on an empty stomach.
- C. Limit vitamin C intake while taking this medication.
- D. Take an iron supplement while on this medication.
Correct answer: A
Rationale: The correct instruction for a client prescribed allopurinol is to drink 2 liters of water daily. This helps reduce the risk of kidney stones, a potential side effect of allopurinol use. Adequate hydration is essential to prevent kidney stone formation and maintain kidney function while taking this medication.
2. A client has a new prescription for Nitroglycerin sublingual tablets. Which of the following instructions should the nurse include?
- A. Take one tablet every 15 minutes until pain is relieved.
- B. Take one tablet every 5 minutes, up to three doses.
- C. Take one tablet at bedtime.
- D. Take one tablet on an empty stomach.
Correct answer: B
Rationale: The correct administration of Nitroglycerin sublingual tablets involves taking one tablet at the onset of chest pain and repeating every 5 minutes for up to three doses. This protocol helps in managing angina episodes effectively. Choice A suggests taking a tablet every 15 minutes until pain relief, which may delay appropriate intervention. Choice C, taking a tablet at bedtime, is not suitable for immediate relief during angina attacks. Choice D, taking a tablet on an empty stomach, is unrelated to the correct administration of Nitroglycerin sublingual tablets.
3. Which of the following is a potassium-sparing diuretic?
- A. Furosemide
- B. Spironolactone
- C. Hydrochlorothiazide
- D. Bumetanide
Correct answer: B
Rationale: Spironolactone is classified as a potassium-sparing diuretic. It works by antagonizing the aldosterone receptor, leading to potassium retention and sodium excretion. This mechanism makes it a suitable choice for conditions where potassium retention is desired, such as in patients with heart failure or liver cirrhosis. Choices A, C, and D are not potassium-sparing diuretics. Furosemide, hydrochlorothiazide, and bumetanide are loop diuretics and thiazide diuretics, respectively, which promote the excretion of potassium.
4. What is the primary action of warfarin as an anticoagulant?
- A. Prevents the formation of blood clots
- B. Dissolves existing blood clots
- C. Dilates coronary arteries
- D. Treats rhythm disturbances
Correct answer: A
Rationale: The correct answer is A: "Prevents the formation of blood clots." Warfarin acts as an anticoagulant by inhibiting the synthesis of certain clotting factors in the liver. This action reduces the blood's ability to clot, making it effective in preventing the formation of blood clots. Choice B is incorrect because warfarin does not dissolve existing blood clots; it prevents their formation. Choice C is incorrect because warfarin's primary action is not to dilate coronary arteries. Choice D is incorrect as warfarin is not used to treat rhythm disturbances, but rather to prevent clot formation.
5. A client has a new prescription for Losartan. Which of the following client statements indicates an understanding of the teaching?
- A. I will increase my intake of potassium-rich foods.
- B. I will take the medication with a full glass of milk.
- C. I should monitor my blood pressure weekly.
- D. I will take the medication every other day.
Correct answer: C
Rationale: The correct answer is C: 'I should monitor my blood pressure weekly.' Monitoring blood pressure regularly is crucial for clients taking Losartan, an angiotensin II receptor blocker, to ensure effective management of hypertension. This medication works to dilate blood vessels, lowering blood pressure, so monitoring is essential to assess its effectiveness. Choices A, B, and D are incorrect because increasing potassium-rich foods can be harmful due to the potassium-sparing effect of Losartan, taking the medication with milk is not recommended, and adherence to the prescribed daily dosing schedule is necessary for optimal therapeutic outcomes.
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