ATI RN
ATI Pharmacology Proctored Exam 2019
1. A client has a new prescription for clonidine to treat hypertension. Which of the following instructions should the nurse include?
- A. Discontinue the medication if a rash develops.
- B. Expect increased salivation during the first few weeks of therapy.
- C. Avoid driving until the client's reaction to the medication is known.
- D. Stop the medication if you experience a dry mouth.
Correct answer: C
Rationale: The correct instruction for a client starting clonidine therapy for hypertension is to avoid driving until their reaction to the medication is known. Clonidine can cause drowsiness, so it is important for the client to refrain from activities that require alertness until they are aware of how the medication affects them. Choice A is incorrect because a rash is not a common side effect of clonidine. Choice B is incorrect as increased salivation is not an expected side effect of clonidine. Choice D is also incorrect as dry mouth is a common side effect of clonidine, but it is not a reason to stop the medication unless severe or bothersome. Therefore, the priority instruction for the nurse to include is to advise the client to avoid driving until their reaction to the medication is known to ensure safety.
2. 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.
3. When teaching a client with a prescription for Cephalexin, which of the following instructions should the nurse include?
- A. Take the medication with an antacid.
- B. Avoid dairy products while taking this medication.
- C. Expect your stools to turn black.
- D. Complete the full course of medication.
Correct answer: D
Rationale: The correct instruction for a client prescribed with Cephalexin is to complete the full course of medication. This is crucial to ensure the infection is completely treated and to reduce the risk of antibiotic resistance. Choices A, B, and C are incorrect. Taking Cephalexin with an antacid is generally not recommended as it may reduce its effectiveness. While dairy products can interfere with certain antibiotics, they do not have a direct interaction with Cephalexin. Stools turning black is not an expected side effect of Cephalexin.
4. What is the therapeutic action of Phenytoin?
- A. Antidiabetic
- B. Anticonvulsant
- C. Mood stabilizer
- D. Antianxiety agent
Correct answer: B
Rationale: Phenytoin is primarily used as an anticonvulsant to prevent and control seizures. It works by stabilizing electrical activity in the brain, making it effective in managing conditions like epilepsy. Antidiabetic medications are used to regulate blood sugar levels, mood stabilizers help manage mood disorders, and antianxiety agents are used to reduce anxiety symptoms, none of which are the primary therapeutic action of Phenytoin.
5. A healthcare provider is preparing to administer dextrose 5% in water (D5W) 750 mL IV to infuse over 6 hr. How many mL/hr should the IV pump be set to deliver?
- A. 125 mL/hr
- B. 100 mL/hr
- C. 150 mL/hr
- D. 200 mL/hr
Correct answer: A
Rationale: To calculate the flow rate, divide the total volume by the total time: (750 mL / 6 hr) = 125 mL/hr. Therefore, the IV pump should be set to deliver 125 mL/hr to infuse dextrose 5% in water (D5W) over 6 hours. Choice B, 100 mL/hr, is incorrect as it does not match the correct calculation. Choice C, 150 mL/hr, is incorrect as it is higher than the calculated flow rate. Choice D, 200 mL/hr, is incorrect as it is also higher than the calculated flow rate.
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