HESI LPN
Pharmacology HESI 2023
1. When a client with hepatic encephalopathy is receiving lactulose, which parameter is essential to monitor for a response to the drug?
- A. Serum hepatic enzymes
- B. Fingerstick glucose
- C. Stool color and character
- D. Serum electrolytes and ammonia
Correct answer: D
Rationale: In hepatic encephalopathy, the goal of lactulose therapy is to reduce blood ammonia levels by promoting its excretion in the stool. Therefore, monitoring serum electrolytes and ammonia levels is crucial to assess the effectiveness of lactulose in lowering ammonia levels and improving the client's condition. Options A, B, and C are incorrect because serum hepatic enzymes, fingerstick glucose, and stool color/character are not directly related to monitoring the response to lactulose therapy in hepatic encephalopathy.
2. A male client receives a scopolamine transdermal patch 2 hours before surgery. Four hours after surgery, the client tells the nurse that he is experiencing pain and asks why the patch is not working. Which action should the nurse take?
- A. Advise the client that the effects of the medication have worn off
- B. Explain that the medication is not given to relieve pain
- C. Check for the correct placement of the patch on the client
- D. Offer to apply a new transdermal patch to address the pain
Correct answer: B
Rationale: The correct answer is B. Scopolamine is not a pain medication; it is commonly used to prevent nausea and vomiting, particularly in surgical settings. It works on the central nervous system to help control these symptoms, not to relieve pain. Therefore, it is important for the nurse to explain to the client that the medication is not intended to relieve pain but rather to manage other specific symptoms. Checking the correct placement of the patch is also important to ensure proper administration, but addressing the misconception about the medication's purpose is the priority in this scenario. Offering to apply a new patch would not address the client's pain as scopolamine is not meant for pain relief. Advising the client that the effects have worn off is inaccurate because the medication is not used for pain management.
3. A client vomits 30 minutes after receiving a dose of hydromorphone on the first postoperative day. What initial intervention is best for the practical nurse (PN) to implement?
- A. Obtain a prescription for nasogastric intubation.
- B. Administer a prn dose of ondansetron.
- C. Reduce the next scheduled dose of hydromorphone.
- D. Assess the client's abdomen and bowel sounds.
Correct answer: B
Rationale: In this scenario, the client's vomiting is likely due to the hydromorphone administration, indicating a need for an antiemetic such as ondansetron to address the nausea. Nasogastric intubation (Choice A) is not necessary at this point as the client is vomiting, not experiencing an obstruction. While reducing the dose of hydromorphone (Choice C) may be considered later, the immediate focus should be managing the client's symptoms. Assessing the client's abdomen and bowel sounds (Choice D) can be important but is not the initial priority when addressing the vomiting post hydromorphone administration.
4. A client undergoing hemodialysis for chronic kidney disease is taking the medication erythropoietin. The nurse should reinforce instructions to explain for which reason this medication is prescribed?
- A. This drug prevents infections associated with dialysis.
- B. This drug prevents deep vein thrombosis in older clients.
- C. This drug helps stimulate the production of red blood cells.
- D. This drug helps balance the level of phosphorus in the body.
Correct answer: C
Rationale: Erythropoietin is prescribed to stimulate the production of red blood cells. Clients undergoing hemodialysis often develop anemia due to end-stage renal disease. Erythropoietin helps correct this anemia by stimulating red blood cell production. It is not used to prevent infections associated with dialysis, prevent deep vein thrombosis, or balance phosphorus levels in the body.
5. A client with a diagnosis of schizophrenia is prescribed ziprasidone. The nurse should monitor the client for which potential side effect?
- A. QT prolongation
- B. Weight gain
- C. Dry mouth
- D. Increased appetite
Correct answer: A
Rationale: The correct answer is A: QT prolongation. Ziprasidone is known to cause QT prolongation, which can potentially lead to serious cardiac issues. Monitoring the client's ECG is crucial to detect any changes and prevent adverse effects related to QT interval prolongation. Choices B, C, and D are incorrect because weight gain, dry mouth, and increased appetite are not commonly associated with ziprasidone. While weight gain can be a side effect of some antipsychotic medications, it is not a prominent side effect of ziprasidone. Dry mouth and increased appetite are also not typically linked to ziprasidone use.
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