Primary prevention includes
**Core Concept**
Primary prevention refers to interventions aimed at preventing the occurrence of disease or injury before it occurs. This can include measures such as vaccinations, health education, and environmental modifications to reduce the risk of disease.
**Why the Correct Answer is Right**
Primary prevention involves strategies that prevent the onset of disease, such as vaccinations against infectious diseases (e.g., measles, mumps, rubella) or screenings for genetic disorders. These interventions target high-risk populations and are designed to reduce the incidence of disease. For example, the use of helmets to prevent head injuries in cyclists is a form of primary prevention.
**Why Each Wrong Option is Incorrect**
**Option A:** Secondary prevention is actually a type of prevention that involves early detection and treatment of disease, often through screening tests (e.g., mammography for breast cancer).
**Option B:** Tertiary prevention, on the other hand, involves measures to manage and treat established disease, such as rehabilitation programs for patients with chronic conditions.
**Option C:** Quaternary prevention is not a widely recognized term in public health, but it is sometimes used to describe interventions aimed at mitigating the consequences of medical interventions (e.g., reducing harm from overmedication).
**Clinical Pearl / High-Yield Fact**
The 3 levels of prevention are often remembered using the acronym **"PPPP"**: Primary Prevention, Primary care, Secondary Prevention, and Tertiary Prevention.
**Correct Answer: C. Tertiary prevention is the prevention of complications and the rehabilitation of patients with chronic diseases.