ATI RN
ATI Pharmacology Proctored Exam
1. When providing teaching to a client with a prescription for Phenytoin, which of the following instructions should the nurse include?
- A. Take this medication at bedtime.
- B. Increase your intake of calcium-rich foods.
- C. Brush and floss your teeth regularly.
- D. Avoid eating foods high in potassium.
Correct answer: C
Rationale: The correct answer is C: 'Brush and floss your teeth regularly.' Phenytoin can cause gingival hyperplasia, a side effect that affects the gums. It is crucial for the client to maintain good oral hygiene to prevent oral health complications. Choices A, B, and D are incorrect. While the timing of medication administration and dietary considerations are important, they are not directly related to preventing the specific side effect of gingival hyperplasia caused by Phenytoin.
2. A client is starting a new prescription for enalapril. Which of the following instructions should the nurse include?
- A. Take the medication with food.
- B. Rise slowly from a sitting position.
- C. Avoid salt substitutes.
- D. Avoid exposure to sunlight.
Correct answer: C
Rationale: The correct instruction for a client starting enalapril is to avoid salt substitutes. Salt substitutes may contain potassium, which could lead to elevated potassium levels when combined with enalapril, increasing the risk of hyperkalemia. Choices A, B, and D are incorrect because there is no specific need to take enalapril with food, rise slowly from a sitting position, or avoid exposure to sunlight when taking this medication.
3. 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.
4. Which of the following is considered a class IA Sodium Channel blocker?
- A. Mexiletine
- B. Amiodarone
- C. Quinidine
- D. Procainamide
Correct answer: D
Rationale: Procainamide is a class IA antiarrhythmic drug that acts as a sodium channel blocker by blocking fast sodium channels. Mexiletine is a class IB antiarrhythmic drug, not class IA. Amiodarone is a class III antiarrhythmic, and Quinidine is a class IA antiarrhythmic but not a sodium channel blocker.
5. A client with Bipolar disorder has a new prescription for Carbamazepine. Which of the following instructions should the nurse include in the teaching? (Select all that apply.)
- A. This medication can safely be taken during pregnancy.
- B. Eliminate grapefruit juice from your diet.
- C. You will need to have a complete blood count and carbamazepine levels drawn periodically.
- D. Notify your provider if you develop a rash.
Correct answer: B
Rationale: The correct answer is B: "Eliminate grapefruit juice from your diet." Grapefruit juice affects carbamazepine metabolism and should be avoided. It can lead to increased levels of the medication, potentially causing toxicity. Monitoring carbamazepine blood levels and the complete blood count (CBC) is essential to ensure the medication's efficacy and safety. Although choice A is incorrect (This medication can safely be taken during pregnancy), carbamazepine is classified as a Pregnancy Category D drug, which means there is positive evidence of human fetal risk. Choice D (Notify your provider if you develop a rash) is also important because carbamazepine can cause serious adverse effects like Stevens-Johnson syndrome, which can be life-threatening. Regular monitoring and prompt reporting of any rash are crucial. Therefore, choices C and D are also relevant instructions for the client.
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