If low-risk criteria below not met, then perform the LP (if not done) and admit for inpatient antibiotics
WBC 5-15 /mm3
Absolute Band count <1500 /mm3
Clear
Neg Nitrate and Leukocyte esterase
WBC <10/high powered field
WBC: 0-22/mm3
Protein: <100mg/dL
WBC 0-7/mm3
Protein: 15-25mg/dL
Pediatric fever of uncertain source
Upper respiratory infection 
AIDS fever of unknown origin
UTI
Lemierre's syndrome
Sepsis
Multisystem inflammatory syndrome in children
Meningitis