Known Pertussis Outbreak in Pediatrics — 4yo Child | Pediatric Infectious | SMLE Q#1246
SMLE Question #1246
Pediatrics
Pediatric Infectious
Objective: OBJ-113
Last updated: February 2026
A 4-year-old boy attends a daycare with a known pertussis outbreak. He has had 10 days of paroxysmal cough with an inspiratory whoop and occasional post-tussive vomiting. He is afebrile, clinically well between coughing spells, and his immunizations are incomplete. Which diagnostic test is most appropriate to confirm pertussis at this stage of illness?
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