How does fever without a local source typically differ from fever with a source in pediatric patients?

• A. Fever without a local source has no identifiable focal infection on exam; fever with a source has identifiable infection.
• B. Fever without a local source always viral; fever with source always bacterial.
• C. Fever with a source has no focal findings.
• D. Fever without source requires antibiotics.

Answer: (A)

The main idea is whether a specific infection site can be found. Fever without a local source means there is no identifiable focal infection on exam or history. Fever with a source means a localized infection is evident on exam or with focused testing, such as otitis media, pneumonia, or a urinary tract infection. This distinction helps guide expectations about causes and management: fever without a localizing sign is often viral and managed with observation and supportive care, while fever with a source points to a definite infection needing targeted therapy. Therefore, fever without a local source has no identifiable focal infection on exam, whereas fever with a source has an identifiable infection.