ATI RN
ATI Pharmacology Proctored Exam 2019
1. A healthcare provider is preparing to administer dextrose 5% in water (D5W) 750 mL IV to infuse over 6 hr. How many mL/hr should the IV pump be set to deliver?
- A. 125 mL/hr
- B. 100 mL/hr
- C. 150 mL/hr
- D. 200 mL/hr
Correct answer: A
Rationale: To calculate the flow rate, divide the total volume by the total time: (750 mL / 6 hr) = 125 mL/hr. Therefore, the IV pump should be set to deliver 125 mL/hr to infuse dextrose 5% in water (D5W) over 6 hours. Choice B, 100 mL/hr, is incorrect as it does not match the correct calculation. Choice C, 150 mL/hr, is incorrect as it is higher than the calculated flow rate. Choice D, 200 mL/hr, is incorrect as it is also higher than the calculated flow rate.
2. Which of the following is not directly related to drug toxicity of Nitroglycerin?
- A. Headaches
- B. Tachycardia
- C. Dizziness
- D. Projectile vomiting
Correct answer: D
Rationale: Headaches, tachycardia, and dizziness are common side effects of nitroglycerin due to its vasodilatory properties. Projectile vomiting is not typically associated with nitroglycerin toxicity, making it the correct answer. Therefore, option D is the correct choice.
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 therapeutic classification of Furosemide?
- A. Antidiuretics
- B. Diuretics
- C. Anticonvulsants
- D. Antidotes
Correct answer: B
Rationale: Furosemide is classified therapeutically as a diuretic. Diuretics are medications used to promote diuresis, which helps the body get rid of excess salt and water. Furosemide is commonly prescribed to treat conditions such as fluid retention and swelling (edema) associated with congestive heart failure, liver disease, or kidney disorders. Choice A, Antidiuretics, is incorrect as Furosemide acts as a diuretic, promoting the production of urine. Choice C, Anticonvulsants, is also incorrect as Furosemide is not used to treat seizures. Choice D, Antidotes, is incorrect as Furosemide is not an antidote but rather a medication used to treat conditions related to fluid retention.
5. A client has a new prescription for Sulfasalazine for the treatment of Crohn's disease. Which of the following instructions should the nurse include?
- A. Expect orange-yellow discoloration of urine and skin.
- B. Take the medication with food.
- C. Do not discontinue the medication if a sore throat occurs.
- D. Avoid prolonged exposure to sunlight.
Correct answer: A
Rationale: The correct answer is A: 'Expect orange-yellow discoloration of urine and skin.' Sulfasalazine can cause this harmless side effect, which does not require discontinuation of the medication. Option B is incorrect because Sulfasalazine is usually taken with food to minimize gastrointestinal side effects. Option C is incorrect as a sore throat is not a common reason to stop the medication. Option D is not directly related to the side effects of Sulfasalazine.
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