A nurse is providing care for a client following a thoracentesis. If the client develops a pneumothorax, which of the following assessment findings should the nurse expect?

A. Pain on inhalation is a common symptom of pneumothorax due to pleural irritation and collapse of the lung. B. Tachycardia, not bradycardia, is more likely in a client with a pneumothorax due to hypoxia. C. A friction rub is associated with pleuritis, not pneumothorax. D. Stridor is a sign of upper airway obstruction, not pneumothorax.