ATI RN
ATI Pharmacology Proctored Exam 2023
1. A client with Peptic Ulcer Disease who is taking Sucralfate PO has a new prescription for phenytoin to control seizures. Which of the following instructions should the nurse include?
- A. Take an antacid with the sucralfate.
- B. Take sucralfate with a glass of milk.
- C. Allow a 2-hour interval between these medications.
- D. Chew the sucralfate thoroughly before swallowing.
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 interval helps ensure that each medication is absorbed effectively without affecting the other's absorption. Choices A, B, and D are incorrect because taking an antacid with sucralfate, taking sucralfate with a glass of milk, or chewing sucralfate thoroughly before swallowing are not necessary or recommended instructions to prevent the interaction between sucralfate and phenytoin.
2. A client is taking Sucralfate PO for Peptic Ulcer Disease and has a new prescription for phenytoin to control seizures. Which of the following instructions should the nurse include?
- A. Take an antacid with the sucralfate.
- B. Take sucralfate with a glass of milk.
- C. Allow a 2-hour interval between these medications.
- D. Chew the sucralfate thoroughly before swallowing.
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. Choices A, B, and D are incorrect because taking an antacid with sucralfate, taking sucralfate with a glass of milk, and chewing sucralfate thoroughly before swallowing do not address the need for a 2-hour interval between these medications to prevent interference with phenytoin absorption.
3. A client has a new prescription for Captopril. Which of the following instructions should the nurse include?
- A. Take the medication with food.
- B. Monitor your blood pressure weekly.
- C. Notify your provider if you develop a persistent cough.
- D. Avoid using salt substitutes to prevent hyperkalemia.
Correct answer: C
Rationale: The correct answer is to instruct the client to notify the provider if they develop a persistent cough. A persistent cough is a common adverse effect of Captopril and other ACE inhibitors. It is essential for the client to inform their healthcare provider promptly if this side effect occurs, as it may indicate a potentially serious issue that needs medical attention.
4. A client is taking oral Oxycodone and Ibuprofen in recommended doses. The nurse should identify that an interaction between these two medications will cause which of the following findings?
- A. A decrease in serum levels of ibuprofen, possibly leading to a need for increased doses of this medication.
- B. A decrease in serum levels of oxycodone, possibly leading to a need for increased doses of this medication.
- C. An increase in the expected therapeutic effect of both medications.
- D. An increase in expected adverse effects for both medications.
Correct answer: C
Rationale: When Oxycodone, a narcotic analgesic, and Ibuprofen, a nonsteroidal anti-inflammatory drug (NSAID), are taken together, they work synergistically to enhance the pain-relieving effects of both medications. These drugs act through different mechanisms, leading to a combined analgesic effect that is more effective than when used alone. Therefore, the interaction between Oxycodone and Ibuprofen results in an increase in the expected therapeutic effect of both medications.
5. What is pharmacodynamics?
- A. The medical reference summarizing standards of drug purity, strength, and directions for synthesis
- B. The drug's actions at receptor sites and the physiological, chemical, and behavioral effects produced by these actions
- C. The maximum response that a drug can produce
- D. Movements of the drugs throughout the body
Correct answer: B
Rationale: Pharmacodynamics refers to the drug's actions at receptor sites and the physiological, chemical, and behavioral effects produced by these actions. It involves understanding how drugs interact with the body at the molecular level to produce their effects, including mechanisms of action, receptor binding, and downstream physiological responses. Choice A is incorrect because it describes pharmacopeia, which is a reference book containing standards for drugs. Choice C refers to efficacy, which is the maximum effect a drug can produce. Choice D describes pharmacokinetics, which focuses on the movement of drugs within the body.
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