HESI LPN
HESI Test Bank Medical Surgical Nursing
1. The healthcare provider prescribes Cytovene 375 mg every 12 hours to infuse over 90 minutes. The pharmacy delivers Cytovene 375 mg in a 150 mL IV bag. How many ml/hour should the nurse program the infusion pump?
- A. 50 ml/hour.
- B. 75 ml/hour.
- C. 100 ml/hour.
- D. 125 ml/hour.
Correct answer: C
Rationale: To infuse 150 mL over 90 minutes, the pump should be set to 100 ml/hour (150 mL / 1.5 hours). This rate ensures that the medication is delivered at the proper rate as prescribed. Choices A, B, and D are incorrect because they do not reflect the correct calculation based on the volume of the IV bag and the infusion duration provided in the question.
2. What is the most effective therapy for maintaining remission of acute lymphoblastic leukemia in a child?
- A. Surgery to remove enlarged lymph nodes
- B. Long-term chemotherapy
- C. Nutritional supplements to enhance blood cell production
- D. Blood transfusions to replace ineffective red cells
Correct answer: B
Rationale: The correct answer is B: Long-term chemotherapy. In the case of acute lymphoblastic leukemia, the most effective approach for maintaining remission is long-term chemotherapy, particularly with methotrexate, a chemotherapeutic agent. Surgery to remove enlarged lymph nodes (choice A) is not the primary treatment for leukemia. Nutritional supplements (choice C) may be beneficial for overall health but are not the mainstay of leukemia treatment. Blood transfusions (choice D) are used to manage anemia in leukemia but do not address the underlying disease process.
3. While changing the dressing of a client with a leg ulcer, the nurse observes a red, tender, and swollen wound at the site of the lesion. Before reporting this finding to the healthcare provider, the nurse should note which of the client’s laboratory values?
- A. Neutrophil count.
- B. Hematocrit.
- C. Blood pH.
- D. Serum potassium and sodium.
Correct answer: A
Rationale: The correct answer is A: Neutrophil count. Neutrophil count helps assess for infection, which is indicated by the redness, tenderness, and swelling of the wound. Elevated neutrophil count is a common sign of bacterial infection. Hematocrit (choice B) measures the proportion of blood volume that is occupied by red blood cells and is not directly related to wound infection. Blood pH (choice C) and serum potassium and sodium (choice D) are important for assessing acid-base balance and electrolyte levels but are not the primary indicators of wound infection.
4. A client who had surgery yesterday is becoming increasingly anxious. The client’s respiratory rate has increased to 38 breaths/minute. The client has a nasogastric tube to low intermittent suction with 500 ml of yellow-green drainage over the last four hours. The client's arterial blood gases (ABGs) indicate a decreased CO2 and an increased serum pH. Which serum laboratory value should the nurse monitor first?
- A. Electrolytes.
- B. Creatinine.
- C. Blood urea nitrogen.
- D. Glucose.
Correct answer: A
Rationale: The correct answer is A, Electrolytes. In this scenario, the client is at risk for metabolic alkalosis due to the loss of gastric secretions through the nasogastric tube. Monitoring electrolytes is crucial to assess the levels of sodium, potassium, chloride, and bicarbonate, which are important in maintaining the acid-base balance of the body. Changes in these electrolyte levels can provide valuable information about the client's fluid status and acid-base balance. Creatinine, blood urea nitrogen, and glucose levels are important parameters to monitor in different situations but are not the priority in this case of potential metabolic alkalosis.
5. A client with a history of seizures is prescribed phenytoin. Which instruction should the nurse include in the discharge teaching?
- A. Report any signs of a sore throat or fever immediately
- B. Take the medication with antacids to reduce stomach upset
- C. Discontinue the medication if you feel drowsy
- D. Increase the dosage if you experience an aura
Correct answer: A
Rationale: The correct answer is A: 'Report any signs of a sore throat or fever immediately.' Phenytoin can cause blood dyscrasias, which can manifest as a sore throat or fever. These symptoms could indicate a serious side effect that requires immediate medical attention. Choice B is incorrect because phenytoin should not be taken with antacids as they can decrease its absorption. Choice C is incorrect because discontinuing phenytoin abruptly can lead to rebound seizures; drowsiness is a common side effect that may improve with time. Choice D is incorrect because adjusting the dosage of phenytoin should only be done under healthcare provider supervision, not based on experiencing an aura.
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