Airway, Oxygenation, and Ventilation Priorities

Start With Airway Patency

A CPAN monitoring question often gives a patient who has just arrived from the operating room, is still sedated, and is drifting from stable to unstable. The first filter is simple: can air move in and out? Look at chest rise, breath sounds, work of breathing, airway position, secretions, snoring, stridor, gag/cough strength, level of consciousness, and whether the patient can follow commands.

If obstruction is likely, the first actions are mechanical and immediate. Reposition the head and neck when not contraindicated, use chin lift or jaw thrust, suction visible secretions, apply oxygen, insert an appropriate airway adjunct if indicated and allowed by policy, and call for anesthesia help if the airway does not rapidly improve. Do not leave an obstructing patient to obtain routine supplies or complete documentation.

Oxygenation Versus Ventilation

Pulse oximetry estimates oxygen saturation, but it does not prove that the patient is ventilating well. A patient receiving supplemental oxygen can keep an acceptable SpO2 while carbon dioxide rises from opioid effect, residual anesthetic, residual neuromuscular blockade, obesity hypoventilation, or obstructive sleep apnea. Capnography, respiratory rate quality, tidal volume, mental status, and arterial blood gas trends help show ventilation.

First-Action Logic

The safest answer restores oxygen delivery before comfort measures. A patient with severe pain and respiratory depression does not need another opioid as the first action; the nurse supports ventilation, reassesses sedation, and escalates for reversal or alternate analgesia. A patient with obstructive sleep apnea who repeatedly desaturates after opioids may need positioning, continuous monitoring, reduced sedative load, and positive airway pressure if ordered.

For laryngospasm, think airway emergency: remove the stimulus if obvious, suction as needed, apply jaw thrust, deliver 100% oxygen with positive pressure, and summon anesthesia immediately. If the patient cannot be ventilated, the team may need medication and reintubation. The nurse prepares equipment and communicates the trend clearly.

Monitor the Monitor, Then the Patient

Equipment problems can mimic deterioration, but they never replace bedside assessment. Check probe placement, waveform quality, oxygen connections, and ventilator tubing while also assessing skin color, air movement, pulse quality, and mental status. If an intubated patient has a high-pressure alarm, think secretions, biting, kinked tubing, bronchospasm, coughing, or decreased lung compliance, then assess the patient and circuit quickly.

Escalation Triggers

Escalate quickly for repeated obstruction, inability to maintain SpO2, apnea, cyanosis, bradypnea with declining consciousness, new stridor, suspected aspiration, difficult mask ventilation, or high ventilator-pressure alarms with patient distress. On the exam, the correct response usually combines bedside action with help: open the airway now, support breathing now, and notify anesthesia or activate the emergency response pathway when the trend is not promptly corrected.