Pertussis (whooping cough)
Appears 2×
Teaching point — how the wording changes the answer
Cough worse at night, paroxysmal, with post-tussive vomiting is pertussis; best diagnostic test is nasopharyngeal PCR for Bordetella pertussis.
Q91
15-year-old, night cough, post-tussive vomiting, diagnostic test.
Key clue
Post-tussive emesis
Show answer
Nasopharyngeal PCR for pertussis
Q97
15-year-old, cough worse at night, dry and wet, vomiting.
Key clue
Pertussis
Show answer
Pertussis nasopharyngeal PCR