The nurse is assisting the healthcare provider with a thoracentesis for a client who has emphysema. Which equipment should the nurse have at the bedside in the event the procedure is ineffective?

A. Intubation tray: An intubation tray is necessary if the client experiences airway compromise or respiratory failure, but it does not directly address complications from an ineffective thoracentesis, such as persistent pneumothorax or pleural effusion. B. Chest tube insertion tray: If the thoracentesis is ineffective and the pleural space continues to fill or air accumulates, a chest tube may be required to drain fluid or air and re-expand the lung. Having a chest tube tray ready ensures rapid intervention for these potential complications. C. Crash cart: A crash cart is essential for emergencies involving cardiac or respiratory arrest, but it is not the first-line equipment for an ineffective thoracentesis unless the client acutely decompensates. D. Ventilator: Mechanical ventilation may be required for severe respiratory failure, but it is not an immediate bedside intervention for an unsuccessful thoracentesis. The priority is to remove fluid or air from the pleural space.