Pertussis Flashcards Preview

Hugh's MD3 Paediatrics > Pertussis > Flashcards

Flashcards in Pertussis Deck (5):
1

What is pertussis?

Respiratory tract infection caused by Bordetella pertussis characterised by paroxysms of cough

2

What is the clinical presentation of pertussis?

1 - Catarrhal Phase
- Coryzal symptom
- Low-grade fever
- Tearing
- 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

3

What are the exam findings for pertussis?

- Usually unhelpful as little respiratory signs
- Sometimes conjunctival haemorrhages or facial petechiae
- Dehydration common

4

How is pertussis diagnosed?

- Nasal or throat swab - PCR
- Blood serology
- Cultures

5

How is pertussis managed?

- Monitoring and supportive therapy
- Abx only shorten course of illness if caught early but does reduce infectivity
- Macrolides are used, particularly clarithromycin