From the Guidelines
Children generally do exhibit hyperthermia, with a normal body temperature range of 97.7°F (36.5°C) to 99.5°F (37.5°C), and are considered febrile at 100.4°F (38°C) or above. This is due to their higher metabolic rate, lower body surface area relative to mass, and developing temperature regulation systems, making them more susceptible to temperature fluctuations 1. When considering fever in children, it's essential to note that they can spike fevers more quickly and to higher levels than adults, potentially reaching 103-104°F (39.4-40°C) with common illnesses.
Key Considerations
- Children under one year of age and those at high risk of complications should be seen and assessed by a general practitioner (GP) or at the A&E department 1.
- Antipyretics like acetaminophen (10-15 mg/kg every 4-6 hours) or ibuprofen (5-10 mg/kg every 6-8 hours) can be used to manage fever in children, but should be dosed according to weight rather than age.
- Aspirin is contraindicated in children (aged under 16 years) 1.
- The definition of fever varies between studies, but a rectal temperature of greater than or equal to 38.0 C (100.4 F) is commonly used 1.
Management of Fever in Children
- Monitor children's temperatures during illness, as they can spike fevers more quickly and to higher levels than adults.
- Provide advice on antipyretics and fluids to all children (and parents) 1.
- Consider the risk of serious bacterial infection (SBI) in febrile children, especially those younger than 3 months, and manage accordingly 1.