A client on mechanical ventilation has a high pressure alarm triggered. Which of the following actions should the nurse prioritize to address this alarm?

High-pressure alarms on a mechanical ventilator indicate increased resistance to airflow within the airway or lungs. This can be caused by factors such as mucus plugging, biting on the endotracheal tube, bronchospasm, or kinking of the ventilator tubing. Immediate bedside assessment is essential because the cause is often reversible and may rapidly compromise oxygenation and ventilation. The nurse must first evaluate the patient before making any equipment adjustments or escalating care. Rationale: A. Notifying the provider and waiting for further instructions delays urgent intervention and may allow the client to deteriorate. High-pressure alarms require immediate bedside assessment because the cause is often quickly correctable. Provider notification is appropriate only after initial assessment and corrective actions have been attempted or if the issue cannot be resolved. B. Turning off the ventilator alarm to prevent distraction is unsafe and inappropriate. The alarm is a critical safety feature that alerts the nurse to potentially life-threatening ventilatory problems. Silencing it does not address the underlying cause and increases the risk of missing a true emergency. C. Assessing the client for secretions and suctioning the airway if necessary is the priority action because airway obstruction from mucus is a common cause of high-pressure alarms. Suctioning can quickly restore airway patency and reduce resistance to ventilation. This direct intervention addresses one of the most common and reversible causes of increased airway pressure. D. Increasing the tidal volume settings is not appropriate because it may worsen airway pressures and further increase the risk of barotrauma. Ventilator settings should not be adjusted until the cause of the alarm is identified and corrected. The priority is to assess and treat reversible patient-related causes, not modify ventilator parameters immediately.