ATI LPN
LPN Pharmacology
1. A client with a history of angina is scheduled for an exercise electrocardiography (ECG) test. The nurse should explain that the purpose of this test is to evaluate which factor?
- A. The heart's response to physical stress
- B. The client's overall physical fitness
- C. The presence of electrolyte imbalances
- D. The effectiveness of anti-anginal medications
Correct answer: A
Rationale: An exercise electrocardiography (ECG) test is used to evaluate the heart's response to physical stress. During the test, the heart's electrical activity is monitored while the client exercises, helping to identify any areas of ischemia or abnormal rhythms. This test helps healthcare providers assess the heart's function and detect any potential issues related to angina or other cardiac conditions. Choice B, the client's overall physical fitness, is incorrect because the test primarily focuses on the heart's response to stress rather than the client's general physical fitness. Choice C, the presence of electrolyte imbalances, is incorrect as this test is not specifically designed to evaluate electrolyte levels. Choice D, the effectiveness of anti-anginal medications, is incorrect as the main purpose of the test is to assess the heart's response to physical stress, not medication effectiveness.
2. 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.
3. The nurse is preparing to administer a scheduled dose of enalapril (Vasotec) to a client with hypertension. Before administering the medication, the nurse should check which priority assessment?
- A. Heart rate
- B. Blood pressure
- C. Respiratory rate
- D. Temperature
Correct answer: B
Rationale: Before administering enalapril, an antihypertensive medication, the nurse should prioritize checking the client's blood pressure. Monitoring blood pressure helps ensure it is at an acceptable level before giving the medication, as enalapril can further lower blood pressure. This assessment is crucial in preventing potential hypotensive episodes and adverse effects associated with excessive blood pressure reduction. Heart rate, respiratory rate, and temperature are important assessments but are not the priority before administering enalapril, which primarily affects blood pressure levels.
4. A healthcare provider is providing discharge teaching to a client who has a new prescription for furosemide. Which of the following statements should the provider include?
- A. Expect muscle pain.
- B. Monitor your weight daily.
- C. Avoid consuming grapefruit juice.
- D. Increase your intake of potassium-rich foods.
Correct answer: D
Rationale: When a client is prescribed furosemide, an important consideration is preventing hypokalemia, a potential side effect of the medication. Furosemide can lead to potassium depletion, so increasing the intake of potassium-rich foods is crucial to maintain adequate potassium levels in the body. Choices A, B, and C are incorrect because muscle pain is not a common side effect of furosemide, monitoring weight daily may not be directly related to the medication, and avoiding grapefruit juice is more relevant for certain medications that interact with grapefruit juice, not furosemide.
5. A client with a history of congestive heart failure (CHF) is receiving digoxin (Lanoxin). The nurse should monitor the client for which sign of digoxin toxicity?
- A. Hypertension
- B. Bradycardia
- C. Hyperglycemia
- D. Insomnia
Correct answer: B
Rationale: Bradycardia is a common sign of digoxin toxicity. Digoxin can cause bradycardia due to its effects on the heart's electrical conduction system. The nurse should closely monitor the client's heart rate for any signs of slowing down, as it can indicate toxicity and potentially lead to serious complications. Hypertension, hyperglycemia, and insomnia are not typically associated with digoxin toxicity. Hypertension is more commonly associated with other conditions or medications, hyperglycemia can be seen in conditions like diabetes or certain medications, and insomnia is not a typical sign of digoxin toxicity.
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