Suffocation: Causes, Symptoms, and Emergency Response

Suffocation (asphyxia) is airway obstruction preventing oxygen intake and CO₂ removal. It is a life-threatening emergency causing hypoxia, brain damage, and death within minutes if untreated.

Signs & Symptoms

• Inability to speak/cough (complete obstruction)
• Clutching throat (universal choking sign)
• Stridor, wheezing, or silent gasping
• Cyanosis (blue lips/fingertips)
• Confusion, agitation → unconsciousness
• Seizures, cardiac arrest if prolonged

Common Causes

• Foreign body (food, toy, vomit)
• Airway compression (strangulation, hanging, crush injury)
• Toxic gas inhalation (CO, smoke, chlorine)
• Drowning/near-drowning
• Laryngospasm, anaphylaxis, epiglottitis

Immediate Action (Conscious Adult/Child >1 yr)

1. Encourage coughing if partial obstruction.
2. Heimlich maneuver (abdominal thrusts) if complete obstruction.
3. Chest thrusts for pregnant/obese.

Unconscious Victim

1. Call 911 / start CPR.
2. Chest compressions (may dislodge object).
3. Look in mouth before rescue breaths; remove only if visible.

Prevention: Cut food small, supervise toddlers, keep small objects away, install CO detectors.