HESI LPN
Medical Surgical HESI 2023
1. A client is receiving a secondary infusion of erythromycin 1 gram in 100 mL dextrose 5% in water (D5W) to be infused in 45 minutes. How many mL/hour should the nurse program the infusion pump?
- A. 100 mL/hour.
- B. 125 mL/hour.
- C. 133 mL/hour.
- D. 150 mL/hour.
Correct answer: C
Rationale: To infuse 100 mL in 45 minutes, the infusion rate should be set to 133 mL/hour (100 mL / 0.75 hours). This calculation is obtained by dividing the total volume to be infused by the total time for infusion (100 mL / 0.75 hours = 133 mL/hour). Therefore, choice C is the correct answer. Choices A, B, and D are incorrect because they do not accurately calculate the infusion rate required to deliver the medication within the specified time frame.
2. The nurse is reviewing blood pressure readings for a group of clients on a medical unit. Which client is at the highest risk for complications related to hypertension?
- A. Post-menopausal Caucasian female who overeats and is 20% above her ideal body weight.
- B. Young adult Hispanic female who has hemoglobin at 11 g/dl (110 g/L) and drinks beer daily.
- C. Older adult who consumes a diet of smoked, cured, and pickled foods.
- D. Middle-aged African-American male who has a serum creatinine level of 2.9 mg/dL (256.4 micromol/L).
Correct answer: D
Rationale: The correct answer is D. An elevated serum creatinine level indicates kidney damage, which significantly increases the risk of complications from hypertension. High blood pressure can damage the kidneys over time, leading to impaired kidney function. Choices A, B, and C do not directly correlate with increased risk of complications related to hypertension. Choice A focuses on obesity and overeating, Choice B on anemia and alcohol consumption, and Choice C on a diet high in sodium and nitrates, none of which are as directly related to hypertension complications as kidney damage.
3. The nurse is recording a history for a child who has been diagnosed with recurrent abdominal pain (RAP). What is a finding that is characteristic of this disorder?
- A. Morning headaches
- B. Pain for 3 consecutive months
- C. Febrile episodes in the late afternoon
- D. Diaphoresis when attacks occur
Correct answer: B
Rationale: The correct answer is B: Pain for 3 consecutive months. Recurrent abdominal pain (RAP) is characterized by abdominal pain that occurs at least once per week for at least 2 months before diagnosis. Choosing option A is incorrect since morning headaches are not a common characteristic of RAP. Option C is incorrect because febrile episodes in the late afternoon are not typically associated with RAP. Option D is incorrect as diaphoresis (excessive sweating) when attacks occur is not a common finding in RAP.
4. In the change of shift report, the nurse is told that a client has a stage 2 pressure ulcer. Which ulcer appearance is most likely to be observed?
- A. Shallow open ulcer with a red-pink wound bed.
- B. Intact skin with non-blanchable redness.
- C. Full-thickness tissue loss with visible fat.
- D. Full-thickness tissue loss with exposed bone, tendon, or muscle.
Correct answer: A
Rationale: The correct answer is A: 'Shallow open ulcer with a red-pink wound bed.' Stage 2 pressure ulcers involve partial-thickness skin loss and typically appear as shallow open ulcers with a red-pink wound bed. Choice B describes a stage 1 ulcer, where the skin is intact but shows non-blanchable redness. Choice C describes a stage 3 ulcer, with full-thickness tissue loss exposing fat. Choice D is characteristic of a stage 4 ulcer, where there is full-thickness tissue loss exposing bone, tendon, or muscle. Therefore, option A best fits the description of a stage 2 pressure ulcer.
5. A client with hyperkalemia is being treated in the emergency department. Which medication should the nurse prepare to administer?
- A. Potassium chloride
- B. Calcium gluconate
- C. Magnesium sulfate
- D. Sodium bicarbonate
Correct answer: B
Rationale: The correct answer is B, Calcium gluconate. In hyperkalemia, where potassium levels are elevated, calcium gluconate is administered to stabilize the myocardial cell membrane and protect the heart from potential arrhythmias. Potassium chloride (choice A) would worsen the condition by further increasing potassium levels. Magnesium sulfate (choice C) is not the primary treatment for hyperkalemia. Sodium bicarbonate (choice D) is used in metabolic acidosis, not specifically for hyperkalemia.
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