HESI LPN
HESI Practice Test Pharmacology
1. A client with a diagnosis of bipolar disorder is prescribed carbamazepine. The nurse should monitor for which potential adverse effect?
- A. Agranulocytosis
- B. Hair loss
- C. Liver toxicity
- D. Weight gain
Correct answer: A
Rationale: Carbamazepine is associated with the potential adverse effect of agranulocytosis, a serious condition characterized by a low white blood cell count. Monitoring white blood cell counts regularly is crucial to detect this adverse effect early and prevent complications.
2. 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.
3. A client with a diagnosis of generalized anxiety disorder is prescribed lorazepam. The client should be informed that this medication may have which potential side effect?
- A. Drowsiness
- B. Dry mouth
- C. Nausea
- D. Headache
Correct answer: A
Rationale: The correct answer is A: Drowsiness. Lorazepam, a medication commonly used to treat anxiety disorders, can lead to drowsiness as a common side effect. It is important for clients to be aware of this potential effect, and they should be advised to avoid activities like driving until they understand how the medication affects them. Dry mouth, nausea, and headache are possible side effects of other medications but are less commonly associated with lorazepam.
4. In a capillary glucose measurement, a client is to receive 10 units of regular insulin and isophane insulin. How should the nurse prepare?
- A. Withdraw ten units of regular insulin from a vial
- B. Withhold the dose until regular insulin is available
- C. Obtain a new vial of regular insulin and withhold
- D. Pull up 30 units from a vial but only administer 10 units
Correct answer: B
Rationale: In insulin administration, regular insulin is typically administered before isophane insulin to manage blood glucose effectively. If regular insulin is not available, it is best to withhold the dose until it can be administered as prescribed. Choice A is incorrect as it suggests withdrawing from a specific vial without specifying regular insulin. Choice C is incorrect as obtaining a new vial of regular insulin may not be necessary if it becomes available shortly. Choice D is incorrect as administering 10 units from a mixture of regular and isophane insulin is not the correct approach.
5. What is the primary nursing intervention that the practical nurse should perform before administering ampicillin to a client diagnosed with a urinary tract infection?
- A. Obtain a clean-catch urine specimen.
- B. Assess the urine pH for acidity.
- C. Insert an indwelling catheter.
- D. Assess for complaints of dysuria.
Correct answer: A
Rationale: The correct answer is to obtain a clean-catch urine specimen. Before administering ampicillin to a client with a urinary tract infection, it is crucial to collect a urine specimen to determine the causative organism and evaluate the effectiveness of pharmacological therapy. Assessing the urine pH for acidity (choice B) is not the primary intervention needed before administering ampicillin. Inserting an indwelling catheter (choice C) is invasive and not necessary unless indicated for specific reasons. Assessing for complaints of dysuria (choice D) is important but does not take precedence over obtaining a urine specimen for proper diagnosis and treatment.
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