Injury Prevention, Safety, and Community Health
This domain tests unintentional injury prevention, violence and abuse recognition, emergency response, environmental health, and community health concepts. Expect questions on epidemiology and reporting duties.
Core rules and concepts
- Leading injury causes vary by age: motor vehicle crashes, poisonings, falls, drowning, and burns. Seat belts, helmets, and child restraints reduce risk.
- Violence prevention includes bullying, dating violence, and child abuse and neglect. Educators are mandated reporters; report reasonable suspicion, not proven fact.
- Emergency response: adult CPR uses 30 compressions to 2 breaths at 100–120 per minute with a depth of about 2 inches; use an AED early. Heimlich maneuvers relieve choking. Good Samaritan laws protect trained responders.
- Environmental health: air and water quality, lead poisoning, mold, and food safety. The food danger zone is 40–140°F.
- Community health: incidence is new cases; prevalence is all existing cases. Health disparities reflect social determinants.
- School safety: drills, threat assessment, and reunification plans.
Worked example: A cafeteria worker notices potato salad has been sitting out for 3 hours at room temperature. Reasoning: the danger zone is 40–140°F; after 2 hours, discard the food. The worker should not taste it or rapidly cool it, because bacteria may already have produced toxins that cooking will not destroy.
Traps that cost marks: confusing incidence with prevalence; assuming a helmet prevents all head injury; using adult CPR ratios for infants; reporting only confirmed abuse; assuming food is safe if it looks and smells fine; confusing quarantine with isolation.