The nurse is assessing a client with an endotracheal tube for readiness to have the tube removed. Which assessment finding is most likely indicative that the client is ready for extubation?

A. Respiratory rate of 10 breaths per minute: A respiratory rate of 10 is below the normal range and may indicate hypoventilation or inadequate respiratory drive, suggesting the client may not yet be ready for extubation. Adequate spontaneous breathing is critical before removing the endotracheal tube. B. Oxygen saturation of 95%: While an oxygen saturation of 95% indicates adequate oxygenation, it alone does not confirm that the client can maintain airway protection or effective ventilation after extubation. Other readiness criteria must also be met. C. Pink nailbeds with brisk capillary refill: These findings reflect adequate peripheral perfusion but do not provide information about airway control, respiratory effort, or the ability to protect the airway, which are essential for extubation readiness. D. Onset of coughing and gagging: The ability to cough and gag indicates that the client has intact airway protective reflexes. This is a key criterion for extubation, as it reduces the risk of aspiration and demonstrates readiness to maintain the airway independently.