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Airway management is always the first priority in trauma. While spinal precautions (Option A) are essential, maintaining an open airway with in-line stabilization takes precedence. IV access and fracture management come later. Without a patent airway, oxygenation and survival are impossible.

Secondary prevention intervenes early once a condition occurs to limit progression—CPR restores circulation after cardiac arrest. Stroke awareness (Option A) and seatbelt use (Option D) are primary prevention. Fall-prevention visits (Option C) are also primary. Understanding these levels helps EMS providers see their broader public health role.

Anaphylaxis triggers massive vasodilation and capillary leak, causing distributive shock. Hypovolemic is blood/fluid loss, cardiogenic is pump failure, obstructive is blockage. Recognizing anaphylactic shock prompts epinephrine IM as first-line treatment, with airway support and transport.

Tension pneumothorax produces absent unilateral breath sounds, hypotension, and JVD due to obstructed venous return. PE (Option A) causes dyspnea but breath sounds are usually present. Pneumonia (Option B) causes fever/crackles. CHF (Option D) causes bilateral crackles and edema.

“-ectomy” means surgical removal (e.g., appendectomy). “-itis” means inflammation. “-megaly” means enlargement. “-ology” means study of. Quick recognition aids in understanding patient histories and diagnoses during assessment.