ATI RN
ATI Pharmacology Proctored Exam
1. 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.
2. A client in a substance abuse clinic is being assessed by a nurse after discontinuing disulfiram due to severe nausea and vomiting. What is the likely cause of the client's distress?
- A. The client demonstrated an allergic response to the medication.
- B. The client experienced a common side effect of the medication.
- C. The client consumed alcohol while taking the medication.
- D. The client took an overdose of the medication.
Correct answer: C
Rationale: Disulfiram, when combined with alcohol, leads to a severe reaction causing nausea and vomiting. Since the client experienced these symptoms after starting disulfiram, it is likely that they consumed alcohol while taking the medication. Choice A is incorrect because the symptoms are more indicative of the interaction with alcohol rather than an allergic response. Choice B is incorrect as severe nausea and vomiting are not common side effects of disulfiram alone. Choice D is incorrect as there is no indication of an overdose based on the symptoms described.
3. A client has a new prescription for Ranitidine to treat peptic ulcer disease. Which of the following instructions should the nurse include?
- A. Take the medication on an empty stomach.
- B. Avoid smoking while taking this medication.
- C. Increase intake of dairy products.
- D. Expect a yellow tinge to the skin.
Correct answer: B
Rationale: The correct instruction that the nurse should include for a client prescribed Ranitidine to treat peptic ulcer disease is to avoid smoking while taking the medication. Smoking can interfere with the effectiveness of ranitidine and worsen ulcer symptoms. Therefore, it is crucial for clients to abstain from smoking to ensure optimal therapeutic outcomes. Choices A, C, and D are incorrect. Taking Ranitidine with or without food does not significantly affect its effectiveness, there is no specific need to increase intake of dairy products, and expecting a yellow tinge to the skin is not a common side effect associated with Ranitidine.
4. When administering medications to a 4-month-old infant, which of the following pharmacokinetic principles should be considered? (Select all that apply.)
- A. Infants have a more rapid gastric emptying time.
- B. Infants have immature liver function.
- C. Infants' blood-brain barrier is poorly developed.
- D. Infants have an increased ability to absorb topical medications.
Correct answer: B
Rationale: When administering medications to a 4-month-old infant, the pharmacokinetic principle to consider is that infants have immature liver function until 1 year of age. This requires medications metabolized by the liver to be administered in smaller dosages. While infants do have a more rapid gastric emptying time, immature liver function is a more critical pharmacokinetic consideration in this context. Additionally, although infants have a poorly developed blood-brain barrier, this relates more to pharmacodynamic effects rather than pharmacokinetic principles. The statement about infants having an increased ability to absorb topical medications is not directly related to pharmacokinetic principles, making choice B the correct answer.
5. What is the appropriate medication to administer for a suspected opioid overdose in a patient who comes to the hospital?
- A. Exenatide
- B. Naloxone
- C. Heparin
- D. Tolvaptan
Correct answer: B
Rationale: The correct answer is B: Naloxone. Naloxone is the drug of choice for managing opioid overdoses as it competitively antagonizes opioid receptors, reversing the respiratory depression and sedation caused by opioids. It is crucial in the emergency treatment of opioid overdose to prevent fatal outcomes. Choices A, C, and D are incorrect. Exenatide is a medication used to treat diabetes, heparin is an anticoagulant, and tolvaptan is a diuretic. None of these medications are indicated for the management of opioid overdose.
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