HESI LPN
HESI Practice Test Pharmacology
1. A client with a history of atrial fibrillation is prescribed verapamil. The nurse should monitor for which potential side effect?
- A. Constipation
- B. Diarrhea
- C. Headache
- D. Hypotension
Correct answer: A
Rationale: Verapamil, a calcium channel blocker, can commonly cause constipation due to its effects on smooth muscle relaxation in the gastrointestinal tract. Therefore, monitoring for constipation is important when a client is prescribed verapamil.
2. A patient with irritable bowel syndrome starts a new prescription for dicyclomine, an anticholinergic medication. The client reports the onset of sensitivity to light and a dry mouth. How should the nurse respond?
- A. Determine if the medication is being taken correctly
- B. Provide instructions on managing these side effects
- C. Schedule an appointment for evaluation by the healthcare provider
- D. Advise stopping the medication until the unpleasant side effects wear off
Correct answer: B
Rationale: The correct response is to provide instructions on managing these side effects. Sensitivity to light and dry mouth are common side effects of anticholinergic medications like dicyclomine. It is essential for the nurse to educate the patient on strategies to cope with these side effects, such as staying hydrated to address dry mouth and wearing sunglasses to reduce sensitivity to light. Option A is not the priority as the side effects are expected with this medication and do not necessarily indicate incorrect use. Option C is not immediately necessary as the side effects are common and can be managed without a healthcare provider evaluation. Option D is not recommended unless advised by the healthcare provider as abruptly stopping the medication can lead to worsening symptoms or withdrawal effects.
3. 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.
4. In the emergency department, a child is admitted for accidental ingestion of a poison. The practical nurse (PN) should know that inducing vomiting is recommended for which child?
- A. An 8-month-old who ingested four to six ibuprofen tablets
- B. A 3-year-old who drank an unknown amount of charcoal lighter fluid
- C. A 16-month-old who ingested 2 ounces of acetaminophen elixir
- D. A 2-year-old who ate a handful of automatic dishwasher detergent
Correct answer: C
Rationale: Inducing emesis is recommended for the child who ingested a large dose of acetaminophen elixir because this medication is hepatotoxic. Acetaminophen overdose can lead to severe liver damage, and prompt removal from the stomach can help reduce absorption and potential harm.
5. 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.
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