ATI LPN
LPN Pharmacology Practice Test
1. A client has a new prescription for clozapine. Which of the following instructions should the nurse include?
- A. You should have your white blood cell count checked regularly.
- B. You should take this medication on an empty stomach.
- C. You should avoid eating foods high in tyramine.
- D. You should avoid taking this medication with milk.
Correct answer: A
Rationale: The correct answer is A: 'You should have your white blood cell count checked regularly.' Clozapine can lead to agranulocytosis, a serious condition characterized by a low white blood cell count. Regular monitoring of the white blood cell count is crucial to detect this adverse effect early and prevent serious complications. Choices B, C, and D are incorrect because taking clozapine on an empty stomach, avoiding foods high in tyramine, or avoiding taking the medication with milk are not specific instructions related to the potential adverse effect of agranulocytosis associated with clozapine.
2. A client has a new prescription for nitroglycerin. Which of the following instructions should the nurse include in the discharge teaching?
- A. Store the medication in a cool, dark place.
- B. Take the medication at bedtime.
- C. Take the medication on an empty stomach.
- D. Take the medication at the first sign of chest pain.
Correct answer: D
Rationale: The correct instruction to include in the discharge teaching for a client with a new prescription for nitroglycerin is to take the medication at the first sign of chest pain. Nitroglycerin is a vasodilator that helps relax blood vessels, increasing blood flow to the heart muscle and reducing the workload of the heart. Taking it at the onset of chest pain helps alleviate angina symptoms quickly and effectively. Storing the medication in a cool, dark place (Choice A) is not a critical instruction for this medication. Taking the medication at bedtime (Choice B) or on an empty stomach (Choice C) is not relevant to the administration of nitroglycerin for angina relief.
3. The client is taking interferon alfa-2a (Roferon-A) and ribavirin (Virazole) combination therapy for hepatitis C and reports overwhelming feelings of depression. Which action should the nurse implement first?
- A. Recommend mental health counseling.
- B. Review the medication actions and interactions.
- C. Assess the client's daily activity level.
- D. Provide information about a support group.
Correct answer: B
Rationale: The priority action for the nurse is to review the medication actions and interactions. Interferon alfa-2a and ribavirin combination therapy for hepatitis C can lead to neuropsychiatric side effects, including depression. By assessing the medication actions and interactions, the nurse can identify if the depression is a known side effect of the medications, and further intervention or adjustment of the treatment plan may be required to address the client's emotional well-being. Recommending mental health counseling (choice A) may be necessary but should come after ensuring that the depression is not solely caused by medication side effects. Assessing the client's daily activity level (choice C) and providing information about a support group (choice D) are important interventions but addressing the medication's potential contribution to the depression takes precedence.
4. The nurse is informed during shift report that a client is experiencing occasional ventricular dysrhythmias. The nurse reviews the client's laboratory results, recalling that which electrolyte imbalance could be responsible for this development?
- A. Hypokalemia
- B. Hypernatremia
- C. Hypochloremia
- D. Hypercalcemia
Correct answer: A
Rationale: Hypokalemia, which is low potassium levels, can disrupt the normal electrical activity of the heart and lead to ventricular dysrhythmias. Potassium plays a crucial role in maintaining the heart's rhythm, and a deficiency can result in dangerous heart rhythm abnormalities. Hypernatremia (Choice B), which is high sodium levels, does not directly impact heart rhythm. Hypochloremia (Choice C), which is low chloride levels, is not typically associated with ventricular dysrhythmias. Hypercalcemia (Choice D), which is high calcium levels, is not a common cause of ventricular dysrhythmias.
5. What is the initial action the nurse should take for a client who had a myocardial infarction (MI) and is experiencing restlessness, agitation, and an increased respiratory rate?
- A. Administer oxygen.
- B. Administer morphine sulfate.
- C. Notify the healthcare provider.
- D. Take the client's blood pressure.
Correct answer: A
Rationale: Administering oxygen is the priority action for a client experiencing restlessness, agitation, and an increased respiratory rate after a myocardial infarction (MI). This intervention helps ensure adequate oxygenation, improve cardiac function, and reduce the workload on the heart. Oxygen therapy takes precedence over administering medications like morphine sulfate or notifying the healthcare provider as it addresses the immediate need for oxygenation. Checking the blood pressure is also important but not as urgent as ensuring proper oxygen supply.
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