Choking (Foreign-Body Airway Obstruction)

• Conscious Adults & Children: Use cycles of 5 back blows followed by 5 abdominal thrusts, starting with back blows. (Use chest thrusts if abdominal thrusts are not practical, such as in late pregnancy).
• Infants: Use 5 back blows followed by 5 chest thrusts using the heel of one hand in the center of the chest. Abdominal thrusts are not recommended for infants.

Opioids and Overdoses

• Naloxone Guidance: Emphasizes lay-rescuer access, administration, and legal protection for using naloxone during suspected overdoses. [1, 2]

Temperature & Hyperthermia First Aid

• Life-Threatening Hyperthermia: Recommends cold or ice water immersion (1–5°C) for severe heat stroke to achieve a rapid cooling rate.