ATI RN
ATI Pharmacology Test Bank
1. A healthcare provider is reviewing the medical history of a client who is scheduled for surgery and takes Warfarin daily. Which of the following laboratory results should the healthcare provider monitor?
- A. Potassium level
- B. INR
- C. BUN
- D. Platelet count
Correct answer: B
Rationale: The INR (International Normalized Ratio) is the most important lab value to monitor in a client taking warfarin. Warfarin is an anticoagulant, and the INR reflects the effectiveness of anticoagulation therapy. Monitoring the INR helps ensure the client is within the therapeutic range to prevent both clotting and bleeding complications.
2. A healthcare professional is preparing to administer morphine 4 mg IV to a client. Available is morphine 10 mg/mL. How many mL should the healthcare professional administer?
- A. 0.2 mL
- B. 0.4 mL
- C. 0.6 mL
- D. 0.8 mL
Correct answer: B
Rationale: To administer 4 mg from a solution of 10 mg/mL, the healthcare professional should administer 0.4 mL. The calculation is done by dividing the desired dose (4 mg) by the concentration of the solution (10 mg/mL), which equals 0.4 mL. Choice A (0.2 mL) is incorrect because it is half of the correct calculation. Choice C (0.6 mL) is incorrect because it is 50% more than the correct calculation. Choice D (0.8 mL) is incorrect because it exceeds the correct calculation.
3. A client is prescribed Lithium. Which of the following laboratory values should be monitored to assess for potential toxicity?
- A. Serum sodium
- B. Serum lithium
- C. Serum potassium
- D. Serum calcium
Correct answer: B
Rationale: When a client is prescribed Lithium, monitoring serum lithium levels is crucial to ensure they remain within the therapeutic range and to assess for potential toxicity. Monitoring serum lithium levels helps prevent adverse effects associated with lithium toxicity, such as nausea, vomiting, diarrhea, tremors, and confusion.
4. What is the expected outcome of Valproate therapy?
- A. Decreased fever
- B. Decreased sense of anxiety
- C. Decreased blood pressure
- D. Decreased seizure activity
Correct answer: D
Rationale: The correct answer is D: Decreased seizure activity. Valproate is commonly used in the treatment of epilepsy to help control and reduce seizure frequency. Choices A, B, and C are incorrect because Valproate is not primarily used to treat fever, anxiety, or blood pressure issues.
5. A client has a new prescription for Clonidine. What instruction should the nurse include during teaching?
- A. Take the medication with food.
- B. Expect to feel drowsy or lightheaded.
- C. Increase your fluid intake.
- D. Avoid foods high in fat.
Correct answer: B
Rationale: The correct instruction when teaching a client about Clonidine is to expect to feel drowsy or lightheaded. Clonidine can cause these side effects, especially when starting the medication. The nurse should advise the client to avoid activities that require alertness until they understand how the medication affects them. Choices A, C, and D are incorrect because taking Clonidine with food, increasing fluid intake, or avoiding foods high in fat are not specific instructions related to managing the side effects of Clonidine.
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