ATI RN
ATI Pharmacology Proctored Exam 2019
1. A client prescribed Isosorbide Mononitrate for chronic stable Angina develops reflex tachycardia. Which of the following medications should the nurse expect to administer?
- A. Furosemide
- B. Captopril
- C. Ranolazine
- D. Metoprolol
Correct answer: D
Rationale: Metoprolol, a beta-adrenergic blocker, is commonly used to treat hypertension and stable angina pectoris. It is often prescribed to decrease heart rate in clients who develop tachycardia, such as in the case of reflex tachycardia induced by Isosorbide Mononitrate, making it the appropriate choice in this scenario. Furosemide (Choice A) is a loop diuretic used for conditions like heart failure and edema, not for reflex tachycardia. Captopril (Choice B) is an ACE inhibitor primarily used for hypertension and heart failure, not for reflex tachycardia. Ranolazine (Choice C) is used for chronic angina but does not specifically address reflex tachycardia.
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 client has a new prescription for Amlodipine. Which of the following instructions should the nurse include during discharge teaching?
- A. Take the medication at bedtime.
- B. Avoid drinking grapefruit juice.
- C. Increase your intake of high-sodium foods.
- D. Expect a dry cough.
Correct answer: B
Rationale: The correct instruction for the nurse to include during discharge teaching is to advise the client to avoid drinking grapefruit juice. Grapefruit juice can inhibit the metabolism of amlodipine, a calcium channel blocker, leading to increased drug levels in the blood. This can result in potentiated side effects and potential toxicity. Option A is incorrect as amlodipine is usually taken once daily, not specifically at bedtime. Option C is incorrect because high-sodium foods are generally discouraged in individuals with hypertension. Option D is incorrect as a dry cough is not an expected side effect of amlodipine.
4. A client is receiving chemotherapy and has a prescription for ondansetron IV for nausea and vomiting. The nurse should monitor the client for which of the following adverse effects?
- A. Hypotension
- B. Bradycardia
- C. Tremors
- D. Urinary retention
Correct answer: C
Rationale: The correct answer is C: Tremors. Ondansetron can cause tremors as an adverse effect. Monitoring for tremors is essential as it can indicate a potential adverse reaction to the medication. Hypotension (choice A) and bradycardia (choice B) are not commonly associated with ondansetron. Urinary retention (choice D) is also not a typical adverse effect of ondansetron, making choices A, B, and D incorrect in this scenario.
5. A client with Peptic Ulcer Disease who is taking Sucralfate PO has a new prescription for phenytoin to control seizures. Which of the following instructions should the nurse include?
- A. Take an antacid with the sucralfate.
- B. Take sucralfate with a glass of milk.
- C. Allow a 2-hour interval between these medications.
- D. Chew the sucralfate thoroughly before swallowing.
Correct answer: C
Rationale: Sucralfate can interfere with the absorption of phenytoin. To prevent this interaction, the client should allow a 2-hour interval between taking sucralfate and phenytoin. This interval helps ensure that each medication is absorbed effectively without affecting the other's absorption. Choices A, B, and D are incorrect because taking an antacid with sucralfate, taking sucralfate with a glass of milk, or chewing sucralfate thoroughly before swallowing are not necessary or recommended instructions to prevent the interaction between sucralfate and phenytoin.
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