A Six-Week-Old Infant With Fever and Positive RSV Testing
A Six-Week-Old Infant With Fever and Positive RSV Testing - Infectious Diseases clinical simulation case. A six-week-old full-term male infant presents to...
Age: 6 • Gender: Male • Setting: Emergency Triage
Clinical Presentation & History
A six-week-old full-term male infant presents to the pediatric emergency department with three days of low-grade intermittent fever, progressive nasal congestion, and decreased feeding. Mother notes he has been sleepier than usual and produced only two wet diapers in the last 12 hours. Initial rapid respiratory viral panel returns positive for respiratory syncytial virus.
Acute Resuscitation Milestones & Priorities
Clinical phases and key interventions encountered in this emergency module:
Initial Triage & Fever Risk Stratification in a Young Infant
Diagnostic Stewardship: Blood, Urine, and the CSF Question
Antimicrobial Selection and Respiratory Support
Disposition, Monitoring, and Parental Counseling
High-Yield Clinical Pearls
In any febrile infant under 90 days, viral detection is reassurance but never exclusion.
Ampicillin remains essential to cover Listeria monocytogenes; cephalosporins do not.
HFNC at 1–2 L/kg/min is the preferred first-line respiratory support for RSV bronchiolitis in infants.
Parental communication about the rationale for painful procedures (LP, blood draws) reduces anxiety and improves adherence.
A normal initial CSF does not rule out neonatal bacterial meningitis; clinical observation and culture incubation are mandatory.
Ceftriaxone is contraindicated in neonates with hyperbilirubinemia and in those <30 days.
Test Your Clinical Reasoning in Real Time
Step into the active clinician role for this case. Order diagnostic tests, analyze live laboratory panels, and navigate branching clinical decisions with real-time feedback.