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Carbon monoxide (CO) is odorless, colorless, and binds hemoglobin with 200x affinity of oxygen. In aircraft, leaks from exhaust or faulty heaters can expose crew and patients, leading to hypoxia unresponsive to SpO₂ monitoring since oximetry cannot differentiate oxyhemoglobin from carboxyhemoglobin. Pesticide, asbestos, and silica exposures are significant but less acute in aircraft. CO detectors in cockpits and medical cabins, supplemental oxygen, and monitoring for unexplained neurologic or cardiac symptoms are essential countermeasures. Rapid descent and source mitigation are lifesaving.

Scope of practice is defined by protocols and medical direction, not sending physician requests. Performing an out-of-scope intervention exposes the provider and service to liability. Declining outright without escalation risks patient safety. Online medical control provides legal oversight, ensures appropriate decision-making, and documents responsibility. Escalating appropriately protects patient and provider while maintaining interfacility collaboration. Professionalism demands advocacy for safe care within established governance structures.

Circumferential chest burns create a rigid eschar that restricts ventilation and chest expansion. Escharotomy releases constriction, restoring compliance. Nebulized epinephrine treats upper-airway edema, not chest wall restriction. High PEEP worsens barotrauma without addressing mechanics. Steroids are ineffective. Crews must be prepared for escharotomy with sterile instruments if airway compromise is imminent, though definitive burn care occurs at specialized centers. Early recognition and communication are vital.

Intracranial hemorrhage is a serious complication of thrombolysis, often presenting with acute headache, nausea/vomiting, neurologic decline, or hypertension. Hypoglycemia and migraine do not explain rapid deterioration post-tPA. Aura precedes seizures but does not cause vomiting and severe headache. Immediate action: stop infusion, monitor airway, lower BP if needed, and notify receiving facility urgently for CT and reversal therapy.

VF is a shockable cardiac arrest rhythm. Immediate high-quality CPR and unsynchronized defibrillation are life-saving. Lidocaine or amiodarone are secondary antiarrhythmics but not first. Aspirin benefits ACS but not VF arrest. Waiting until arrival wastes critical time; survival falls 10% per minute without defibrillation. Air medical crews must coordinate shock delivery safely in the cabin, ensure crew safety, and resume compressions immediately. Early defibrillation is the cornerstone of survival in VF during STEMI transport.