A nurse is assisting in the care of a group of children on a pediatric medical surgical unit. Which of the following children should the nurse collect data from first?

A. A toddler who has periorbital cellulitis and has an axillary temperature of 37.6°C (99.7°F): A mild temperature in the context of periorbital cellulitis is expected and not an immediate emergency. Although periorbital cellulitis can be serious, this temperature alone does not demand immediate action over other critical symptoms. B. An adolescent who has influenza and reports a headache of 6 on a scale of 0 to 10: A headache with influenza is common and requires monitoring, but unless there are signs of severe neurological involvement, it is not the highest priority compared to potential circulatory compromise. C. An infant who had a pyloromyotomy 12 hr ago and spit up after the last feeding: Mild vomiting or spitting up is common following a pyloromyotomy and is not unusual within the first 24 hours postoperatively. It generally does not require immediate intervention unless persistent or worsening. D. A child who had a cast placed 4 hr ago and reports numbness in the affected extremity: Numbness may indicate impaired circulation or nerve compression, a sign of possible compartment syndrome. This is a surgical emergency that can result in permanent damage if not promptly assessed and treated.