Community Health and Public Health Nursing
What you must understand
This domain covers levels of prevention, epidemiology basics, immunisation, communicable disease control, maternal and child health in the community, and health education. Know primary (prevent before onset), secondary (early detection), and tertiary (rehabilitation and limiting disability) prevention.
Traps in questions
- Screening is secondary prevention, not primary. Vaccination, health education, and sanitation are primary.
- Incidence vs prevalence. Incidence is new cases over time; prevalence is all existing cases at a point. Questions often swap them.
- Notifiable diseases must be reported promptly; the nurse's duty is to report, not to investigate.
- Herd immunity protects those who cannot be vaccinated; it depends on high coverage.
Worked rule of thumb
Classify the intervention by when it acts: before disease (primary), during early undetected disease (secondary), or after disease with disability (tertiary). For example, a mammography screening programme is secondary prevention, while a smoking-cessation education campaign is primary.
Health education principle
Effective education is tailored to literacy, culture, and readiness to change. Questions reward assessing the learner's understanding and using teach-back, not simply delivering information.