Community and Public Health Nursing
Community health shifts focus from the individual to populations. Know the levels of prevention:
- Primary: prevent disease before it occurs (immunisation, health education, sanitation, seatbelt laws).
- Secondary: early detection and treatment (screening programmes, Pap smears, blood pressure screening).
- Tertiary: reduce disability and rehabilitate (cardiac rehab, support groups, chronic disease management).
Epidemiology basics: Incidence = new cases over time; prevalence = all existing cases. Attack rate, relative risk, and herd immunity are commonly tested. Understand the chain of infection (agent, reservoir, portal of exit, mode of transmission, portal of entry, susceptible host) and where to break it.
Core public health functions: assessment (monitor health), policy development, and assurance (ensure services). Screening criteria include a significant condition, an acceptable test, and effective early treatment.
Health promotion and education: Use teach-back, consider health literacy and culture, and involve community leaders. In the UAE context, immunisation programmes, road-safety campaigns, diabetes and cardiovascular screening, and heat-related illness prevention are relevant.
Home visiting and vulnerable groups: Assess the home environment, infection risks, and caregiver capacity. Mandatory reporting of communicable diseases and safeguarding concerns is part of the role.
Traps
- Misclassifying a screening programme as primary prevention (it is secondary).
- Confusing incidence with prevalence.
- Choosing an individual-level intervention when the question asks for a population-level strategy.
Rule of thumb
Ask who is the client? If the question is about a community or population, the best answer usually involves education, screening, surveillance or policy, not one-to-one treatment.