HESI LPN
Medical Surgical HESI 2023
1. 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.
2. The nurse is providing postoperative care for a client who had a thyroidectomy. Which assessment finding requires immediate intervention?
- A. Hoarseness and weak voice
- B. Calcium level of 8.0 mg/dL (2.0 mmol/L)
- C. Heart rate of 110 beats per minute
- D. Difficulty swallowing
Correct answer: D
Rationale: Difficulty swallowing can indicate swelling or hematoma formation, which may compromise the airway and requires immediate intervention. Hoarseness and a weak voice are expected post-thyroidectomy due to manipulation of the laryngeal nerves but do not require immediate intervention. A calcium level of 8.0 mg/dL is within the normal range (8.5-10.5 mg/dL) and may not require immediate intervention. A heart rate of 110 beats per minute may be elevated due to stress or pain postoperatively, but it does not indicate an immediate threat to the airway.
3. A client with hyperthyroidism is prescribed methimazole. Which adverse effect should the nurse monitor for?
- A. Agranulocytosis
- B. Hypoglycemia
- C. Bradycardia
- D. Hypercalcemia
Correct answer: A
Rationale: The correct answer is Agranulocytosis. Methimazole, used to treat hyperthyroidism, can lead to agranulocytosis, a severe decrease in white blood cells. This condition increases the risk of infections and requires immediate medical attention. Hypoglycemia (choice B) is not a common adverse effect of methimazole. Bradycardia (choice C) is unlikely as methimazole tends to have minimal effects on heart rate. Hypercalcemia (choice D) is not associated with methimazole use.
4. The nurse is caring for a client with myasthenia gravis. Which symptom is most important for the nurse to report to the healthcare provider?
- A. Diplopia (double vision)
- B. Difficulty swallowing
- C. Weakness in the legs
- D. Fatigue
Correct answer: B
Rationale: In a client with myasthenia gravis, difficulty swallowing is the most crucial symptom to report to the healthcare provider. This is because it can lead to aspiration, a severe complication in these clients. Diplopia (double vision) and weakness in the legs are common symptoms of myasthenia gravis but are not as immediately dangerous as difficulty swallowing. Fatigue is also a common symptom in myasthenia gravis but does not pose the same risk of aspiration as difficulty swallowing.
5. What most influences the severity of respiratory distress syndrome (RDS)?
- A. Poor cough and gag reflex
- B. The gestational age at birth
- C. Administering high concentrations of oxygen
- D. The sex of the infant
Correct answer: B
Rationale: The correct answer is B. The gestational age at birth most influences the severity of respiratory distress syndrome (RDS). RDS is caused by a deficiency of surfactant and it occurs almost exclusively in preterm, low-birth weight infants. Therefore, the gestational age at birth is a key factor in determining the likelihood and severity of RDS. Choices A, C, and D are incorrect as they do not directly relate to the primary factor influencing the severity of RDS.
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