HESI LPN
Pharmacology HESI 55 Questions 2023
1. 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.
2. A client with a history of deep vein thrombosis is prescribed enoxaparin. The nurse should monitor for which potential adverse effect?
- A. Increased risk of bleeding
- B. Decreased risk of bleeding
- C. Increased risk of infection
- D. Decreased risk of infection
Correct answer: A
Rationale: Enoxaparin is an anticoagulant that works by preventing blood clots. One of the potential adverse effects of enoxaparin is an increased risk of bleeding due to its anticoagulant properties. Therefore, the nurse should monitor the client for signs of bleeding, such as easy bruising, petechiae, or blood in stool or urine, to ensure timely intervention and prevent complications.
3. 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.
4. A client diagnosed with seizures is prescribed phenytoin. Which medication instruction should the practical nurse (PN) reinforce to this client?
- A. Maintain consistent sodium intake.
- B. Use sunscreen when outdoors.
- C. Return for monthly urinalysis.
- D. Brush and floss teeth daily.
Correct answer: D
Rationale: The correct answer is to reinforce the instruction to brush and floss teeth daily. Phenytoin therapy can lead to gingival hyperplasia (gum disease), which can be prevented by maintaining good oral hygiene practices such as brushing and flossing daily. Choices A, B, and C are incorrect because they are not directly related to the side effects or management of phenytoin therapy. Maintaining consistent sodium intake is not a specific concern with phenytoin. Using sunscreen when outdoors is important to prevent sunburn but is not directly related to phenytoin therapy. Returning for monthly urinalysis may be necessary for other medications, but it is not specifically required for monitoring phenytoin therapy.
5. A client with a history of stroke is prescribed dabigatran. The nurse should monitor for which potential side effect?
- A. Dry mouth
- B. Weight gain
- C. Headache
- D. Dizziness
Correct answer: C
Rationale: The correct answer is C: Headache. Dabigatran, an anticoagulant, can cause headache as a potential side effect. Headache is important to monitor as it may indicate adverse effects or complications that need attention. Choices A, B, and D are incorrect because dry mouth, weight gain, and dizziness are not commonly associated with dabigatran use.
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