ATI RN
ATI Pharmacology Proctored
1. A drug ending in the suffix (pril) is considered a ______.
- A. H
- B. ACE inhibitor
- C. Antifungal
- D. Beta agonist
Correct answer: B
Rationale: Drugs with names ending in -pril are classified as angiotensin-converting enzyme (ACE) inhibitors. These medications are commonly used to manage conditions like high blood pressure, heart failure, and diabetic kidney disease by blocking the conversion of angiotensin I to angiotensin II, leading to vasodilation and decreased blood pressure.
2. A client has a new prescription for Furosemide. Which of the following adverse effects should the nurse monitor?
- A. Hyperkalemia
- B. Hyponatremia
- C. Hypernatremia
- D. Hypercalcemia
Correct answer: B
Rationale: Furosemide is a diuretic that commonly causes hyponatremia (low sodium levels) due to its effect on sodium and water excretion. The nurse must closely monitor the client for signs of hyponatremia, such as weakness, confusion, and muscle cramps, and promptly intervene to prevent complications. Choices A, C, and D are incorrect because Furosemide is not associated with hyperkalemia, hypernatremia, or hypercalcemia. Understanding the medication's mechanism of action helps prioritize monitoring for potential adverse effects.
3. Which drug undergoes extensive first-pass hepatic metabolism?
- A. Heparin
- B. Insulin
- C. Propranolol
- D. Nitroglycerin
Correct answer: C
Rationale: Propranolol undergoes extensive first-pass hepatic metabolism in the liver. When administered orally, propranolol is extensively metabolized by the liver before reaching systemic circulation, leading to reduced bioavailability. This process is known as first-pass hepatic metabolism, which significantly affects the drug's effectiveness and necessitates higher oral doses compared to other routes of administration. Heparin (Choice A) is not metabolized by the liver but excreted unchanged by the kidneys. Insulin (Choice B) is a peptide hormone that is not subject to significant first-pass metabolism. Nitroglycerin (Choice D) is primarily metabolized in the blood and tissues, bypassing significant first-pass metabolism in the liver.
4. A healthcare professional 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 D5W 750 mL over 6 hours. Choice B (100 mL/hr) is incorrect because it does not accurately divide the total volume by the total time. Choice C (150 mL/hr) and Choice D (200 mL/hr) are incorrect as they are not the correct flow rates needed to infuse the D5W solution over the specified time period.
5. A client is being discharged with a new prescription for Clopidogrel. Which of the following instructions should the nurse include?
- A. Avoid taking aspirin while on this medication.
- B. Take this medication with food.
- C. Avoid eating foods high in potassium.
- D. Take this medication at bedtime.
Correct answer: A
Rationale: The correct instruction for a client prescribed Clopidogrel is to avoid taking aspirin while on this medication. Clopidogrel is an antiplatelet medication that can increase the risk of bleeding. Aspirin and other NSAIDs can potentiate the risk of bleeding, so they should be avoided while taking Clopidogrel to prevent adverse effects. Choices B, C, and D are incorrect because Clopidogrel does not need to be taken with food, there is no specific dietary restriction related to potassium, and the timing of administration (bedtime) is not a critical instruction for this medication.
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