ATI RN
ATI Pharmacology Proctored Exam 2023
1. A patient on a medical-surgical unit administers a hypnotic medication to an older adult client at 2100. The next morning, the client is drowsy and wants to sleep instead of eating breakfast. Which of the following factors should the nurse identify as a possible reason for the client's drowsiness?
- A. Reduced cardiac function
- B. First-pass effect
- C. Reduced hepatic function
- D. Increased gastric motility
Correct answer: C
Rationale: In older adults, reduced hepatic function can lead to prolonged effects of medications metabolized by the liver. This prolonged effect may result in drowsiness the next morning. Adjusting the dosage of the hypnotic medication may be necessary for this client. Choices A, B, and D are incorrect. Reduced cardiac function (Choice A) is not typically associated with drowsiness due to medication effects. The first-pass effect (Choice B) relates to the initial metabolism of a drug in the liver before reaching systemic circulation, which is not directly linked to drowsiness the next morning. Increased gastric motility (Choice D) does not commonly cause drowsiness as described in the scenario.
2. A client with OCD has a new prescription for Paroxetine. Which of the following instructions should the nurse include?
- A. It can take several weeks before you feel like the medication is helping.
- B. Take the medication just before bedtime to promote sleep.
- C. You should take the medication when needed for obsessive urges.
- D. Monitor for weight gain while taking this medication.
Correct answer: A
Rationale: The correct answer is A. Paroxetine, an antidepressant commonly used for OCD, typically takes 1 to 4 weeks before the client experiences the full therapeutic benefit. Therefore, informing the client that it may take several weeks before feeling the medication's effects is crucial to manage expectations and ensure compliance with the treatment plan. Choice B is incorrect because Paroxetine is usually taken in the morning due to its activating effects and may cause insomnia if taken before bedtime. Choice C is incorrect because Paroxetine should be taken regularly as prescribed, not just when experiencing obsessive urges. Choice D is incorrect because although weight gain can be a side effect of Paroxetine, it is not a priority instruction compared to the delayed onset of therapeutic effects.
3. A client with brain cancer and headaches is prescribed dexamethasone. What is the purpose of this adjuvant medication?
- A. To decrease inflammation and swelling
- B. To improve concentration
- C. To induce sedation
- D. To treat depression
Correct answer: A
Rationale: Dexamethasone, a glucocorticoid, is indicated for clients with brain cancer to decrease inflammation and swelling. It helps reduce cerebral edema and relieve pressure caused by the tumor, ultimately alleviating headaches. The purpose of prescribing dexamethasone in this case is not to improve concentration (choice B), induce sedation (choice C), or treat depression (choice D). Methylphenidate, a stimulant, is used for conditions like ADHD, not for brain cancer. Hydroxyzine, an antihistamine, is primarily used for anxiety and itching, not for brain cancer. Amitriptyline, a tricyclic antidepressant, is used for conditions like depression and neuropathic pain, not specifically for brain cancer-related headaches.
4. A client has a new prescription for Amiodarone. Which of the following instructions should the nurse include?
- A. Take this medication with meals.
- B. Avoid drinking grapefruit juice.
- C. Take this medication at bedtime.
- D. Increase your intake of sodium-rich foods.
Correct answer: B
Rationale: The correct instruction the nurse should include is to advise the client to avoid drinking grapefruit juice while taking Amiodarone. Grapefruit juice can inhibit the metabolism of Amiodarone, leading to increased blood levels of the medication and raising the risk of adverse effects, such as cardiac toxicity. Choices A, C, and D are incorrect. Taking Amiodarone with meals, at bedtime, or increasing intake of sodium-rich foods are not necessary instructions for this medication.
5. When a client has a new prescription for Warfarin, which of the following foods should they avoid based on the nurse's instructions?
- A. Broccoli
- B. Bananas
- C. Chicken
- D. Potatoes
Correct answer: A
Rationale: Clients prescribed Warfarin should avoid foods high in vitamin K, like broccoli, as they can counteract the medication's effectiveness. Warfarin works by inhibiting vitamin K-dependent clotting factors, so consuming high vitamin K foods can interfere with its anticoagulant effects. Bananas, chicken, and potatoes are not high in vitamin K and do not have a significant impact on Warfarin therapy.
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