Final answer:
If a baby less than 28 days old has a fever higher than 100.4 degrees Fahrenheit, the possible diagnosis until proven otherwise is neonatal meningitis. Some associated symptoms of neonatal meningitis include nausea, vomiting, photophobia, stiff neck, confusion, and fever. Diagnostic tests may include a routine culture, antigen detection by enzyme immunoassay, serotyping of different capsule types, PCR, and RT-PCR.
Step-by-step explanation:
If a baby less than 28 days old has a fever higher than 100.4 degrees Fahrenheit, the possible diagnosis until proven otherwise is neonatal meningitis. Some associated symptoms of neonatal meningitis include nausea, vomiting, photophobia, stiff neck, confusion, and fever. In order to diagnose neonatal meningitis, the doctor may order tests such as a routine culture, antigen detection by enzyme immunoassay, serotyping of different capsule types, PCR, and RT-PCR.