Correct Answer: D

Rationale: Intense perianal itching is the most common symptom of pinworm infection, especially at night when the female worms lay their eggs

Correct Answer: A

Rationale: Varicella (chickenpox) is an airborne infectious disease, requiring isolation to prevent the spread of the virus.

Correct Answer: D

Rationale: Coughing with excessive secretion is a common sign of tracheoesophageal fistula. In this condition, the connection between the trachea and esophagus allows saliva and food to enter the airways, leading to coughing and excessive secretions. Choice A, jaundice, is not typically associated with tracheoesophageal fistula. Hyperactive bowel sounds (Choice B) are more likely seen in conditions like gastroenteritis. Absence of sucking and vomiting (Choice C) is not a typical finding related to tracheoesophageal fistula.

Correct Answer: A

Rationale: Breast milk provides adequate hydration, even in warm weather, so additional fluids like water are not necessary and can interfere with breastfeeding.

Correct Answer: B

Rationale: The 'difficult' child is the best way to describe the child in this scenario. This temperament is characterized by high activity levels, irritability, irregular habits, and difficulty adapting to changes. Choice A, the 'easy' child, is known for being generally positive and adaptable. Choice C, the 'slow-to-warm-up' child, typically needs time to adapt to new situations but is not necessarily highly active or irritable. Choice D, the 'fast-to-warm-up' child, adapts quickly to new situations, which contrasts with the child's slow adaptation mentioned in the scenario.