Flashcards in Pertussis Deck (5):
What is pertussis?
Respiratory tract infection caused by Bordetella pertussis characterised by paroxysms of cough
What is the clinical presentation of pertussis?
1 - Catarrhal Phase
- Coryzal symptom
- Low-grade fever
- Conjunctival suffusion
2 - Paroxysmal phase
- Bouts of coughing lasting 2-3 minutes, often ending in a whoop
- Posttusive vomiting and turning red
3 - Convalescent stage
- Chronic cough
What are the exam findings for pertussis?
- Usually unhelpful as little respiratory signs
- Sometimes conjunctival haemorrhages or facial petechiae
- Dehydration common
How is pertussis diagnosed?
- Nasal or throat swab - PCR
- Blood serology