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. A client has been prescribed losartan. Which change in data indicates to the practical nurse (PN) that the desired effect of this medication has been achieved?
- A. Dependent edema reduced from +3 to +1.
- B. Serum HDL increased from 35 to 55 mg/dL.
- C. Pulse rate reduced from 150 to 90 beats/min.
- D. Blood pressure reduced from 160/90 to 130/80 mm Hg.
Correct answer: D
Rationale: The correct answer is D. Losartan is prescribed for the treatment of hypertension. The desired effect of losartan is to reduce blood pressure. Therefore, a reduction in blood pressure from 160/90 to 130/80 mm Hg indicates that the desired effect of the medication has been achieved. Choices A, B, and C are not specific effects of losartan and do not directly relate to the expected outcomes of this medication. Dependent edema, serum HDL levels, and pulse rate are not typically influenced by losartan, making choices A, B, and C incorrect.
3. A client with rheumatoid arthritis is prescribed methotrexate. What is the most important instruction the practical nurse (PN) should provide to the client?
- A. Take the medication on an empty stomach.
- B. Avoid taking folic acid supplements.
- C. Report any signs of infection immediately.
- D. Increase intake of vitamin C-rich foods.
Correct answer: C
Rationale: Correct Answer: The most important instruction for a client taking methotrexate is to report any signs of infection immediately. Methotrexate can suppress the immune system, making the client more susceptible to infections. Early detection and treatment of infections are crucial to prevent complications. Instructing the client to be vigilant for signs of infection empowers them to take prompt action, enhancing their overall safety and well-being.
4. A client with a diagnosis of bipolar disorder is prescribed valproate. The nurse should monitor for which potential adverse effect?
- A. Weight gain
- B. Hair loss
- C. Hyperglycemia
- D. Hypoglycemia
Correct answer: A
Rationale: The correct answer is A: Weight gain. Valproate is known to cause weight gain as a common adverse effect. It is important for the nurse to monitor the client's weight regularly while on this medication to detect and address any changes that may occur.
5. Prior to administering an oral dose of methylprednisolone, what is most important for the nurse to do?
- A. Administer the medication with a glass of milk
- B. Notify the healthcare provider of the finding
- C. Begin tapering the drug dose per protocol
- D. Teach the clients about foods high in calcium
Correct answer: A
Rationale: Administering methylprednisolone with food or milk is important as it can help reduce gastrointestinal side effects associated with the medication. This practice is commonly recommended to minimize stomach upset and irritation that may occur when taking methylprednisolone on an empty stomach. Therefore, it is crucial for the nurse to provide the medication with a glass of milk to enhance patient comfort and adherence to the treatment regimen. Choice B is incorrect as there is no indication in the question stem that suggests a need to notify the healthcare provider before administering the medication with food or milk. Choice C is incorrect because tapering the drug dose per protocol is not the immediate action needed prior to administering the first dose of methylprednisolone. Choice D is irrelevant to the administration of methylprednisolone and not the most important action to take before giving the medication.
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