ATI RN
ATI Pharmacology Proctored Exam 2023
1. A client informs a healthcare professional about taking Gingko Biloba. Which of the following medications is contraindicated for a client using Gingko Biloba?
- A. Acetaminophen
- B. Warfarin
- C. Digoxin
- D. Lisinopril
Correct answer: B
Rationale: Warfarin is contraindicated for a client taking Gingko Biloba due to the potential interaction that can lead to suppressed coagulation and an increased risk of bleeding or hemorrhage. Warfarin is an anticoagulant, and when combined with Gingko Biloba, which also has anticoagulant properties, the risk of bleeding complications is significantly heightened. Acetaminophen (Choice A), Digoxin (Choice C), and Lisinopril (Choice D) do not have significant interactions with Gingko Biloba compared to Warfarin. Acetaminophen is a pain reliever, Digoxin is a medication for heart conditions, and Lisinopril is an ACE inhibitor for hypertension.
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. Which drug classes are NOT typically used to treat angina?
- A. Calcium channel blockers
- B. Organic nitrates
- C. Alpha blockers
- D. Beta blockers
Correct answer: C
Rationale: Angina is primarily treated with calcium channel blockers, organic nitrates, and beta blockers. Alpha blockers are not commonly used in the treatment of angina. Calcium channel blockers help dilate blood vessels, decreasing the workload on the heart. Organic nitrates relax and widen blood vessels, improving blood flow and reducing the heart's workload. Beta blockers reduce the heart rate and blood pressure, decreasing the heart's demand for oxygen. Alpha blockers are more commonly used to treat conditions like hypertension and benign prostatic hyperplasia.
4. A healthcare professional is about to administer Propranolol to a patient. The healthcare professional takes the patient's apical pulse and documents it as 58 bpm. How should the healthcare professional proceed?
- A. Administer the medication as prescribed
- B. Administer half of the normal dose
- C. Consider the extended-release form of the medication
- D. Withhold administration of the medication and notify the healthcare provider
Correct answer: D
Rationale: When a patient's apical pulse is 58 bpm, it is below the normal range. Propranolol is a beta-blocker that can further lower the heart rate. Therefore, it is crucial to withhold the medication and notify the healthcare provider to evaluate the patient's condition. Administering Propranolol in this situation can exacerbate bradycardia, leading to serious complications. Choosing to administer the medication as prescribed (Choice A) can put the patient at risk. Administering half of the normal dose (Choice B) without healthcare provider guidance is not appropriate in this case. Considering the extended-release form of the medication (Choice C) does not address the immediate concern of bradycardia and is not the best course of action.
5. 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 that are high in magnesium.
- D. Limit your fluid intake to 1 liter per day.
Correct answer: B
Rationale: The correct answer is to 'Eat a diet high in potassium.' Furosemide is a loop diuretic that can cause hypokalemia (low potassium levels). Instructing the client to eat a diet high in potassium can help counteract the potassium-wasting effect of furosemide and prevent hypokalemia. Choice A is incorrect because furosemide can be taken at different times of the day based on individual needs. Choice C is incorrect as furosemide does not directly interact with magnesium levels. Choice D is incorrect because while fluid intake may need to be monitored, a specific limit of 1 liter per day is not a general instruction for all clients taking furosemide.
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