HESI RN
Pharmacology HESI Quizlet
1. The client has a PRN prescription for loperamide hydrochloride (Imodium). The nurse understands that this medication is used for which condition?
- A. Constipation
- B. Abdominal pain
- C. An episode of diarrhea
- D. Hematest-positive nasogastric tube drainage
Correct answer: C
Rationale: Loperamide hydrochloride (Imodium) is an antidiarrheal medication commonly used to manage episodes of diarrhea. It works by slowing down gut movement and reducing the frequency of bowel movements. Loperamide is not indicated for constipation, abdominal pain, or hematest-positive nasogastric tube drainage. It is specifically useful in acute and chronic diarrhea, such as in cases of inflammatory bowel disease, to help control symptoms and decrease fluid loss.
2. A client with hypertension is prescribed clonidine (Catapres) transdermal patch. Which statement by the client indicates an understanding of the medication?
- A. I should change the patch daily.
- B. I should remove the old patch before applying a new one.
- C. I should avoid alcohol consumption while using this patch.
- D. I should apply the patch to different sites each time.
Correct answer: B
Rationale: The correct answer is B. The client should remove the old clonidine (Catapres) patch before applying a new one to prevent overdose. The patch is typically changed every 7 days. Avoiding alcohol consumption is important as it can potentiate the sedative effects of clonidine. It is recommended to rotate application sites to prevent skin irritation and ensure optimal drug absorption.
3. The camp nurse asks the children preparing to swim in the lake if they have applied sunscreen. The nurse reminds the children that chemical sunscreens are most effective when applied:
- A. Immediately before swimming
- B. 15 minutes before exposure to the sun
- C. Immediately before exposure to the sun
- D. At least 30 minutes before exposure to the sun
Correct answer: D
Rationale: Chemical sunscreens are most effective when applied at least 30 minutes before exposure to the sun to allow them to penetrate the skin and provide optimal protection. Applying sunscreen immediately before swimming (Choice A) or immediately before exposure to the sun (Choice C) may not provide sufficient time for the sunscreen to be absorbed and offer proper protection. Applying sunscreen 15 minutes before sun exposure (Choice B) is also not ideal as it may not allow enough time for the sunscreen to work effectively. Therefore, the correct answer is to apply chemical sunscreen at least 30 minutes before exposure to the sun to ensure it can be absorbed and offer the intended protection. It is important to reapply sunscreen after swimming or sweating to maintain its effectiveness.
4. The client with breast cancer is receiving cyclophosphamide (Neosar). The nurse is reinforcing medication instructions and advises the client to:
- A. Take the medication with food.
- B. Increase fluid intake to 2000 to 3000 mL daily.
- C. Decrease sodium intake while taking the medication.
- D. Increase potassium intake while taking the medication.
Correct answer: B
Rationale: The correct answer is to increase fluid intake to 2000 to 3000 mL daily. Cyclophosphamide can cause hemorrhagic cystitis as a toxic effect. By increasing fluid intake, the client can help prevent this complication by promoting frequent urination, which reduces the concentration of the drug and its metabolites in the bladder. This dilution effect can help reduce the risk of bladder toxicity.
5. A client is receiving meperidine (Demerol) for pain management. Which assessment finding requires immediate action?
- A. Constipation
- B. Drowsiness
- C. Respiratory rate of 10 breaths per minute
- D. Nausea
Correct answer: C
Rationale: A respiratory rate of 10 breaths per minute indicates respiratory depression, a severe side effect of meperidine (Demerol) that necessitates immediate intervention to prevent further complications. Constipation, drowsiness, and nausea are common but less urgent side effects that do not pose an immediate life-threatening risk. Respiratory depression can lead to respiratory arrest and must be addressed promptly to ensure the client's safety and well-being.
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