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 experiencing tachycardia, including those with reflex tachycardia induced by medications like Isosorbide Mononitrate. Furosemide (Choice A) is a diuretic and is not indicated for reflex tachycardia. Captopril (Choice B) is an ACE inhibitor used for hypertension and heart failure, not tachycardia. Ranolazine (Choice C) is used in chronic angina but does not address tachycardia.
2. A healthcare professional in a provider's office 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: The correct answer is C: Potassium 3.4 mEq/L. Potassium 3.4 mEq/L is below the expected reference range and puts a client at risk for digoxin toxicity. Low potassium levels can lead to fatal dysrhythmias, especially in older clients taking Digoxin, as potassium plays a crucial role in the heart's electrical activity. Choices A and B are related to calcium levels, which do not directly increase the risk of Digoxin toxicity. Choice D, Potassium 4.8 mEq/L, is within the expected reference range and would not increase the risk of Digoxin toxicity.
3. A client with a history of migraine headaches is starting prophylaxis therapy with Propranolol. Which of the following findings in the client history should be reported to the provider by the nurse?
- A. The client had a prior myocardial infarction.
- B. The client takes warfarin for atrial fibrillation.
- C. The client takes an SSRI for depression.
- D. An ECG indicates a first-degree heart block.
Correct answer: D
Rationale: Propranolol is contraindicated in clients with a first-degree heart block due to its negative chronotropic properties that can further slow the heart rate. This can worsen conduction through the atrioventricular node, potentially leading to heart block progression. Therefore, the nurse should report the finding of a first-degree heart block to the provider before initiating Propranolol therapy. Choices A, B, and C are not contraindications for Propranolol therapy. A prior myocardial infarction, taking warfarin for atrial fibrillation, or using an SSRI for depression do not directly impact the initiation of Propranolol therapy in a client with a history of migraine headaches.
4. A client has a new prescription for Hydrochlorothiazide. Which of the following information should the nurse include?
- A. Take the medication with food.
- B. Plan to take the medication at bedtime.
- C. Expect increased swelling of the ankles.
- D. Fluid intake should be limited in the morning.
Correct answer: A
Rationale: The correct answer is to take the medication with food. Hydrochlorothiazide should be taken with or after meals to prevent gastrointestinal upset. Taking it with food can help reduce the chances of stomach discomfort or nausea. It is not necessary to take the medication at bedtime, expect increased swelling of the ankles, or limit fluid intake in the morning when taking Hydrochlorothiazide. Therefore, choices B, C, and D are incorrect.
5. A client has a new prescription for Verapamil. Which of the following instructions should the nurse include?
- A. Take this medication at bedtime.
- B. Monitor for signs of hyperglycemia.
- C. Avoid drinking grapefruit juice.
- D. Increase your intake of potassium-rich foods.
Correct answer: C
Rationale: The correct answer is to instruct the client to avoid drinking grapefruit juice. Grapefruit juice can inhibit the metabolism of Verapamil, leading to increased blood levels of the medication, which can potentiate its effects, potentially causing adverse reactions like hypotension and bradycardia. Choices A, B, and D are incorrect. Taking Verapamil at bedtime is not a specific instruction related to its metabolism or side effects. Monitoring for signs of hyperglycemia is not directly related to Verapamil use. Increasing potassium-rich foods intake is not necessary with Verapamil and could potentially lead to hyperkalemia in some cases.
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