HESI LPN
Pharmacology HESI 55 Questions 2023
1. The client is receiving vancomycin, and the nurse plans to draw blood for a peak and trough to determine... the best timing for these levels?
- A. Midway through administration of the IV dose and 30 minutes before the next
- B. Two hours after completion of the IV dose and 30 minutes before the next
- C. Two hours after completion of the IV dose and one hour before the next
- D. Immediately after completion of the IV dose and 30 minutes before
Correct answer: B
Rationale: To accurately determine peak and trough levels of vancomycin, blood should be drawn two hours after the completion of the IV dose and 30 minutes before the next dose. This timing allows for appropriate assessment of the drug levels in the body, ensuring accurate monitoring of therapeutic and toxic concentrations. Choice A is incorrect as drawing blood midway through administration does not provide an accurate peak level. Choice C is incorrect as drawing blood one hour before the next dose does not represent the trough level. Choice D is incorrect because drawing blood immediately after completion of the IV dose does not allow enough time for the drug to reach peak levels.
2. During a home visit, a client with a history of angina reports frequent headaches. The client recently started a new prescription for diltiazem, a calcium channel blocker. What action should the nurse take?
- A. Explain the importance of obtaining a blood sample promptly to test for medication toxicity
- B. Consult with the healthcare provider regarding the necessity of an opioid analgesic for pain relief
- C. Recommend the client to discontinue the medication until contacting the healthcare provider
- D. Instruct the client on the use of acetaminophen every 4-6 hours as needed for headaches
Correct answer: D
Rationale: The correct action for the nurse to take is to instruct the client to use acetaminophen for headaches. Acetaminophen is a suitable and safer option for managing headaches associated with calcium channel blockers like diltiazem. It is essential to avoid medications that can interact negatively with diltiazem, such as opioid analgesics. Discontinuing the medication abruptly without consulting the healthcare provider is not recommended. Monitoring for medication toxicity through blood samples is not typically indicated for managing headaches in this scenario.
3. A client with diabetes mellitus type 2 is prescribed metformin. What instruction should the nurse include in the client's teaching plan?
- A. Take this medication with meals.
- B. Avoid alcohol while taking this medication.
- C. Take this medication on an empty stomach.
- D. Report any signs of lactic acidosis to the healthcare provider.
Correct answer: A
Rationale: The correct instruction for a client prescribed metformin is to take the medication with meals. Taking metformin with meals helps to minimize gastrointestinal side effects, which are common with this medication. Choice B, avoiding alcohol, is a good practice due to the increased risk of lactic acidosis when alcohol is consumed with metformin; however, it is not the priority teaching point in this scenario. Taking metformin on an empty stomach (Choice C) is incorrect because it can increase the risk of gastrointestinal side effects. Reporting signs of lactic acidosis (Choice D) is important, but it is more related to monitoring for adverse effects rather than a primary teaching point for administration.
4. A client with chronic heart failure is prescribed furosemide. The nurse should monitor the client for which potential adverse effect?
- A. Increased blood glucose levels
- B. Electrolyte imbalance
- C. Dehydration
- D. Weight gain
Correct answer: C
Rationale: When a client with chronic heart failure is prescribed furosemide, a diuretic, the nurse should be vigilant for potential adverse effects. Furosemide can lead to excessive fluid loss, resulting in dehydration. Dehydration is a significant concern as it can exacerbate heart failure symptoms. Additionally, furosemide can cause electrolyte imbalances, particularly affecting potassium and sodium levels. Monitoring for signs of dehydration and electrolyte disturbances is crucial to prevent complications and ensure the client's safety and well-being. Increased blood glucose levels and weight gain are not commonly associated with furosemide use in heart failure patients, making choices A and D incorrect.
5. A client with a history of atrial fibrillation is prescribed sotalol. The nurse should monitor for which potential side effect?
- A. Bradycardia
- B. Tachycardia
- C. Headache
- D. Hyperglycemia
Correct answer: A
Rationale: Corrected Rationale: Sotalol, a medication used for atrial fibrillation, is known to cause bradycardia, which is a slower than normal heart rate. Monitoring the client's heart rate is essential to detect and manage this potential side effect promptly. Choice B, Tachycardia, is incorrect as sotalol is more likely to cause bradycardia. Choice C, Headache, and Choice D, Hyperglycemia, are unrelated side effects of sotalol and are not commonly associated with this medication.
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