Which of the following interventions is an example of tertiary prevention?

Correct Answer: C

Rationale: Tertiary prevention focuses on managing and improving quality of life for individuals with existing health conditions. Physical rehabilitation programs fall under this category as they help individuals recover and regain functioning after an illness or injury. This intervention aims to prevent further complications and disabilities. Vaccination campaigns (A) and health education seminars (B) are examples of primary and secondary prevention, focusing on preventing diseases before they occur or detecting them early. Early disease screening (D) is also a form of secondary prevention, aiming to detect diseases in their early stages before symptoms appear.

Correct Answer: B

Rationale: Exclusive breastfeeding for the first 6 months provides complete nutrition for the infant, meeting all their dietary needs. Breast milk contains essential nutrients and antibodies that support healthy growth and development. It also helps to strengthen the baby's immune system and reduce the risk of infections. Ensuring complete nutrition through breastfeeding is crucial for optimal health outcomes in the early stages of life. Preventing childhood obesity, increasing the risk of allergies, and delaying cognitive development are not directly linked to exclusive breastfeeding and are therefore incorrect choices.

Correct Answer: B

Rationale: The correct answer is B: Vaccination. Preventive measures aim to prevent diseases before they occur. Vaccination helps the immune system recognize and fight specific pathogens, reducing the risk of infection and disease transmission. Chemotherapy (A) is a treatment for cancer, not prevention. Radiation therapy (C) and surgical intervention (D) are also treatments rather than preventive measures. Vaccination stands out as the only option that directly addresses disease prevention, making it the correct choice.

Correct Answer: C

Rationale: The correct answer is C: Prevention and treatment of childhood illnesses. The IMCI strategy focuses on a holistic approach that includes both prevention and treatment of common childhood illnesses. It emphasizes promoting healthy practices, early detection, appropriate treatment, and follow-up care. Hospital-based care (A) is not the primary focus as IMCI aims to improve health outcomes at the community level. Curative care only (B) is also not correct as prevention is a key component of IMCI. Surgical interventions (D) are not the primary focus of IMCI, which aims to address a wide range of common childhood illnesses with a comprehensive approach.

Correct Answer: C

Rationale: The correct answer is C: Vaccination. Vaccination is the most effective method for preventing the spread of infectious diseases because it helps build immunity against specific pathogens, reducing the likelihood of infection and transmission. Vaccines train the immune system to recognize and fight off harmful microorganisms. Antibiotic treatment (A) is used to treat bacterial infections, not prevent the spread of diseases. Quarantine (B) is effective in isolating infected individuals but does not prevent the initial spread of diseases. Nutritional supplementation (D) can support overall health but is not a direct method for preventing infectious diseases.

Correct Answer: D

Rationale: The correct answer is D: Folic acid. Folic acid is essential for preventing neural tube defects because it plays a crucial role in DNA synthesis and cell division, particularly during early fetal development. Adequate folic acid intake before and during pregnancy can significantly reduce the risk of neural tube defects. Iron (A), Vitamin C (B), and Calcium (C) are important nutrients for overall health but do not have a direct role in preventing neural tube defects. Iron is vital for red blood cell production, Vitamin C is an antioxidant that supports the immune system, and Calcium is essential for bone health. However, for preventing neural tube defects specifically, folic acid is the essential nutrient.

Correct Answer: B

Rationale: The correct answer is B: Previous allergic reaction to the vaccine. This is a contraindication for live vaccines because individuals with a history of allergic reactions to a specific vaccine are at a higher risk of developing severe allergic reactions upon re-administration. It is crucial to avoid administering live vaccines to these individuals to prevent potential life-threatening complications. Incorrect Choices: A: Mild upper respiratory infection - This is not a contraindication for live vaccines as it is a mild and temporary condition that does not affect vaccine administration. C: Current antibiotic therapy - This is not a contraindication for live vaccines as antibiotics do not interfere with live vaccine effectiveness. D: Family history of allergies - While a family history of allergies may increase the risk of developing allergies, it is not a direct contraindication for live vaccines as long as the individual themselves does not have a history of allergic reactions to the specific vaccine.

Correct Answer: B

Rationale: The correct answer is B: Administering antiretroviral therapy. Antiretroviral therapy helps reduce the viral load in the mother, decreasing the risk of transmitting HIV to the child during pregnancy, childbirth, and breastfeeding. It is a proven method recommended by the World Health Organization. A: Exclusive breastfeeding can increase the risk of HIV transmission to the child if the mother is HIV positive. C: Using unsterilized medical equipment can increase the risk of HIV transmission. D: Avoiding prenatal care can lead to missed opportunities for prevention and treatment interventions.

Correct Answer: B

Rationale: The correct answer is B: Sunken fontanelle. Dehydration in infants can cause the fontanelle, the soft spot on the baby's head, to appear sunken. This is due to decreased fluid levels in the body. Sunken fontanelle is a common and easily identifiable sign of dehydration in infants. The other choices are incorrect because frequent urination is not typically associated with dehydration in infants, excessive drooling can be a normal part of teething, and increased appetite is not a specific sign of dehydration in infants.