ATI RN
ATI Pharmacology Proctored Exam 2019
1. A healthcare professional is caring for an older adult client who has a new prescription for Digoxin and takes multiple other medications. Which of the following medications, when used concurrently with Digoxin, places the client at risk for Digoxin toxicity?
- A. Phenytoin
- B. Verapamil
- C. Warfarin
- D. Aluminum hydroxide
Correct answer: B
Rationale: Verapamil, a calcium-channel blocker, can increase digoxin levels, leading to Digoxin toxicity. When these medications are used together, the client is at an increased risk. Phenytoin (Choice A) does not significantly impact digoxin levels. Warfarin (Choice C) and aluminum hydroxide (Choice D) do not directly increase the risk of Digoxin toxicity. Therefore, the correct choice is Verapamil (Choice B) due to its potential to raise digoxin levels and cause toxicity.
2. A client has a new prescription for Metformin. Which of the following adverse effects of Metformin should the nurse instruct the client to report to the provider?
- A. Somnolence
- B. Constipation
- C. Fluid retention
- D. Weight gain
Correct answer: A
Rationale: The correct answer is 'A: Somnolence.' Somnolence can indicate lactic acidosis, which is manifested by extreme drowsiness, hyperventilation, and muscle pain. It is a rare but very serious adverse effect caused by metformin and should be reported to the provider promptly to prevent further complications.
3. A client with Diabetes is experiencing Nausea due to Gastroparesis. The healthcare provider should anticipate a prescription for which of the following medications?
- A. Lubiprostone
- B. Metoclopramide
- C. Bisacodyl
- D. Loperamide
Correct answer: B
Rationale: Metoclopramide, a dopamine antagonist, is indicated for treating nausea and increasing gastric motility. In the context of diabetic gastroparesis, it can alleviate bloating and nausea by enhancing gastric emptying. Lubiprostone (Choice A) is a chloride channel activator used for chronic idiopathic constipation and irritable bowel syndrome with constipation. Bisacodyl (Choice C) is a stimulant laxative primarily used for constipation. Loperamide (Choice D) is an anti-diarrheal agent and would not be appropriate for treating nausea and gastroparesis.
4. A client has a new prescription for atenolol. Which of the following findings should the nurse instruct the client to monitor for as an adverse effect of this medication?
- A. Tachycardia
- B. Hypoglycemia
- C. Bradycardia
- D. Hypertension
Correct answer: C
Rationale: Atenolol is a beta-blocker that works by slowing down the heart rate. An adverse effect of atenolol is bradycardia, characterized by a slower than normal heart rate. The nurse should instruct the client to monitor for signs of bradycardia, such as a slow heart rate, while taking atenolol. Therefore, the correct answer is to monitor for bradycardia. Tachycardia (Choice A) is not an expected adverse effect of atenolol as it actually reduces heart rate. Hypoglycemia (Choice B) is not a typical adverse effect of atenolol. Hypertension (Choice D) is not an adverse effect of atenolol, as atenolol is commonly used to manage hypertension.
5. What is the expected pharmacological action of propranolol?
- A. Block stimulation of beta1 receptors
- B. Alter water and electrolyte transport in the large intestine
- C. Block stimulation of beta2 receptors
- D. Both A and C are correct
Correct answer: D
Rationale: Propranolol exerts its pharmacological action by blocking stimulation of both beta1 and beta2 receptors. By doing so, it leads to decreased heart rate and blood pressure. Therefore, both options A and C are correct as propranolol affects both types of beta receptors. Choice B is incorrect as propranolol does not alter water and electrolyte transport in the large intestine.
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