Which of the following is listed as a not breathing situation?

• A. Not breathing at all
• B. UNCERTAIN BREATHING
• C. Hanging
• D. Drowning arrest (out of water)

Answer: (C)

In emergency medical dispatch, a not breathing situation means there is no effective air exchange happening and immediate intervention is required. Hanging is categorized as a not breathing situation because it causes rapid airway obstruction and cessation of breathing, leading to respiratory arrest that demands urgent CPR and rapid EMS response. The other options don’t fit this specific category as cleanly: not breathing at all is too broad a description, uncertain breathing indicates we’re unsure of the breathing status, and drowning arrest out of water is a different context that, while it can involve no breathing, is not the specific not-breathing scenario highlighted here.