Which symptoms will be most important for the nurse to assess for early signs of respiratory distress in the patient who has been given a neuromuscular-blocking agent?

The correct answer is A. Dyspnea, increased respiratory rate, and cyanosis are crucial symptoms to assess for early signs of respiratory distress in a patient given a neuromuscular-blocking agent. Dyspnea indicates difficulty breathing, increased respiratory rate signifies the body's attempt to compensate for inadequate oxygenation, and cyanosis suggests inadequate oxygenation. Restlessness, anxiety, and lethargy (choice B) are not specific to respiratory distress. Nasal flaring and retraction of intercostal muscles (choice C) are late signs of respiratory distress. Pallor, stridor, and diaphoresis (choice D) are not typically associated with respiratory distress.