ATI RN
ATI Pharmacology Proctored Exam
1. A client has a new prescription for Omeprazole. Which of the following instructions should the nurse include?
- A. Take this medication before meals.
- B. Take this medication with food.
- C. Take this medication at bedtime.
- D. Take this medication with antacids.
Correct answer: A
Rationale: The correct answer is A: 'Take this medication before meals.' Omeprazole is a proton pump inhibitor that should be taken before meals to be most effective in reducing stomach acid production. Taking it before meals allows the medication to inhibit the proton pumps in the stomach when they are most active, leading to better control of acid secretion. Choice B is incorrect because taking Omeprazole with food may reduce its effectiveness as food can interfere with its absorption. Choice C is incorrect as Omeprazole is more effective when taken before meals. Choice D is incorrect as Omeprazole should not be taken with antacids as they can reduce its absorption.
2. A healthcare provider in a clinic is monitoring serum electrolytes for four older adult clients who take digoxin. Which of the following electrolyte values increases a client's risk for Digoxin toxicity?
- A. Calcium 9.2 mg/dL
- B. Calcium 10.3 mg/dL
- C. Potassium 3.4 mEq/L
- D. Potassium 4.8 mEq/L
Correct answer: C
Rationale: Potassium 3.4 mEq/L is below the expected reference range, which increases the risk for digoxin toxicity. Low potassium levels can lead to fatal dysrhythmias, particularly in older clients taking Digoxin. Hypokalemia potentiates the effects of Digoxin, making the heart more sensitive to its toxic effects. Monitoring and correcting electrolyte imbalances, especially low potassium levels, are crucial to prevent adverse effects of digoxin therapy. Calcium levels do not directly influence digoxin toxicity, so choices A and B are incorrect. High potassium levels, as in choice D, are less likely to increase the risk of digoxin toxicity compared to low potassium levels.
3. A drug ending in the suffix (tidine) is considered a ______.
- A. Antidepressant
- B. Protease inhibitor
- C. Beta antagonist
- D. H antagonist
Correct answer: D
Rationale: Drugs ending in -tidine are histamine (H2) receptor antagonists, which block the action of histamine at the H2 receptors, commonly used to reduce stomach acid production. Therefore, the correct answer is an 'H antagonist.' It is essential to be familiar with drug suffixes as they can provide clues to the drug's class and function.
4. A client has a prescription for furosemide. Which of the following instructions should the nurse include?
- A. Take furosemide in the morning.
- B. Eat a diet high in potassium.
- C. Avoid foods high in magnesium.
- D. Limit fluid intake to 1 liter per day.
Correct answer: B
Rationale: The correct instruction for a client taking furosemide is to eat a diet high in potassium. Furosemide is a loop diuretic that can lead to potassium loss, potentially causing hypokalemia. Consuming foods rich in potassium can help maintain normal potassium levels in the body and counteract the potential side effect of furosemide. Choices A, C, and D are incorrect because taking furosemide in the morning does not specifically relate to its effectiveness or side effects, avoiding foods high in magnesium is not a primary concern when taking furosemide, and limiting fluid intake to 1 liter per day is not a general recommendation for individuals taking furosemide.
5. A client has a new prescription for Captopril for hypertension. The nurse should monitor the client for which of the following adverse effects of this medication?
- A. Hypokalemia
- B. Hypernatremia
- C. Neutropenia
- D. Bradycardia
Correct answer: C
Rationale: Neutropenia is a serious adverse effect associated with ACE inhibitors like Captopril. Neutropenia refers to a decreased level of neutrophils, which are important white blood cells in fighting infection. Monitoring the client's complete blood count (CBC) is essential to detect neutropenia early. Hypokalemia (Choice A) is more commonly associated with diuretics, not ACE inhibitors. Hypernatremia (Choice B) is an increase in sodium levels, not typically caused by Captopril. Bradycardia (Choice D) is not a common adverse effect of ACE inhibitors like Captopril.
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