ATI Pharmacology Proctored Exam 2023

Correct Answer: C

Rationale: A serum potassium level of 5.2 mEq/L indicates hyperkalemia. Spironolactone is a potassium-sparing diuretic that can lead to potassium retention. The nurse should notify the provider and withhold the medication to prevent further elevation of potassium levels, which can result in serious cardiac complications.

Correct Answer: A

Rationale: The correct answer is Acetylcysteine. Acetylcysteine is the antidote for acetaminophen overdose. It works by replenishing glutathione, which is depleted in cases of acetaminophen overdose, thus preventing liver damage. Pegfilgrastim is a medication used to stimulate white blood cell production, misoprostol is a medication used to prevent gastric ulcers, and naltrexone is used in the management of opioid addiction and alcohol dependence, which are not indicated in the scenario described.

Correct Answer: B

Rationale: Atenolol is a beta-blocker that can cause bradycardia (slow heart rate). Monitoring the heart rate regularly is essential to detect any significant decreases promptly. This allows for timely intervention and adjustment of the medication regimen if needed, helping to prevent adverse effects associated with bradycardia.

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 timing helps to ensure adequate absorption and effectiveness of both medications without compromising therapeutic outcomes.

Correct Answer: D

Rationale: When taking colesevelam, it should be administered with food and at least 8 oz of water to ensure proper absorption and reduce the risk of gastrointestinal side effects. Therefore, the nurse should instruct the client to take colesevelam with food and at least one glass of water.