ATI RN
ATI Pharmacology Proctored Exam
1. A nurse is caring for a client who is receiving treatment with vincristine. Which of the following findings should the nurse monitor?
- A. Hyperkalemia
- B. Neurotoxicity
- C. Neutropenia
- D. Bradycardia
Correct answer: B
Rationale: The correct answer is B: Neurotoxicity. Vincristine is known to cause neurotoxicity as an adverse effect due to its impact on the nervous system. Monitoring for symptoms such as peripheral neuropathy, muscle weakness, and tingling sensations is crucial. Choices A, C, and D are incorrect because hyperkalemia, neutropenia, and bradycardia are not typically associated with vincristine therapy.
2. What is the correct definition of drug absorption?
- A. Movement of a drug from the site of administration to various tissues of the body
- B. Describes the absorption, distribution, metabolism, and excretion of drugs
- C. These types of drugs can be taken over the counter
- D. This addresses how various drugs affect different forms of the body
Correct answer: A
Rationale: The correct definition of drug absorption is the movement of a drug from the site of administration into various tissues of the body. It is the process by which a drug is taken up and enters the systemic circulation. Choice B describes the pharmacokinetics of drugs, including absorption, distribution, metabolism, and excretion, but it is not a specific definition of drug absorption. Choice C is unrelated to drug absorption, as it refers to over-the-counter drugs. Choice D is too vague and does not specifically address the process of drug absorption.
3. Which drug undergoes extensive first-pass hepatic metabolism?
- A. Heparin
- B. Insulin
- C. Propranolol
- D. Nitroglycerin
Correct answer: C
Rationale: Propranolol undergoes extensive first-pass hepatic metabolism in the liver. When administered orally, propranolol is extensively metabolized by the liver before reaching systemic circulation, leading to reduced bioavailability. This process is known as first-pass hepatic metabolism, which significantly affects the drug's effectiveness and necessitates higher oral doses compared to other routes of administration. Heparin (Choice A) is not metabolized by the liver but excreted unchanged by the kidneys. Insulin (Choice B) is a peptide hormone that is not subject to significant first-pass metabolism. Nitroglycerin (Choice D) is primarily metabolized in the blood and tissues, bypassing significant first-pass metabolism in the liver.
4. A client has been taking Sertraline for the past 2 days. Which of the following assessment findings should alert the nurse to the possibility that the client is developing Serotonin syndrome?
- A. Bruising
- B. Fever
- C. Abdominal pain
- D. Rash
Correct answer: B
Rationale: The correct answer is B: Fever. Fever is a key symptom of serotonin syndrome, a potentially life-threatening condition that can occur with the use of serotonergic medications like Sertraline. Serotonin syndrome is characterized by a combination of symptoms, including fever, agitation, rapid heartbeat, sweating, shivering, tremors, and in severe cases, it can lead to seizures, coma, and even death. Bruising (Choice A), abdominal pain (Choice C), and rash (Choice D) are not typically associated with serotonin syndrome. Therefore, the nurse should be vigilant in monitoring for fever as an early sign of serotonin syndrome in clients taking Sertraline.
5. A client receives a new prescription for NRTIs for HIV treatment. Which statement should the nurse include during teaching about these medications?
- A. These medications work by inhibiting enzymes to prevent HIV replication.
- B. These medications work by preventing protein synthesis within the HIV cell.
- C. These medications work by weakening the cell wall of the HIV virus.
- D. These medications work by blocking HIV entry into cells.
Correct answer: A
Rationale: NRTIs inhibit the enzyme reverse transcriptase, essential for HIV replication. By preventing this process, viral replication is hindered, ultimately reducing the viral load in the body. Option A correctly explains the mechanism of action of NRTIs in treating HIV infection. Choices B, C, and D describe mechanisms of action that do not align with how NRTIs work in HIV treatment. B is incorrect because NRTIs do not target protein synthesis within the HIV cell. C is incorrect as NRTIs do not affect the cell wall of the HIV virus. D is incorrect because NRTIs do not block HIV entry into cells.
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