Pertussis Flashcards
1
Q
Define pertussis
A
- highly contagious acute respiratory illness caused by Bordetella pertussis
- aka whooping cough
2
Q
What are the 3 phases of pertussis?
A
- cattaharal
- paroxysmal
- convalescent
3
Q
Describe the cattaharal phase of pertussis
A
- URI symptoms for 1-2w
- insidious onset
4
Q
Describe the paroxysmal phase of pertussis
A
- rapid consecutive coughs followed by deep high pitched inspiration (whoop)
- post-tussive syncope or emesis
5
Q
Describe the convalescent phase of pertussis
A
- gradual resolve of cough & emesis
6
Q
How is pertussis diagnosed?
A
- nasopharyngeal culture v blood draw
- severe lymphocytosis
7
Q
What determines if a patient need a nasopharyngeal swab v. blood draw for pertussis?
A
- nasopharyngeal: all infants, < 11y/o, & >11 y/o of sx under 2 w
- blood: > 11 y/o with over 2 w of sx
8
Q
How is pertussis prevented?
A
- DTaP in infants
- TDaP in adolescents & adults
9
Q
T/F: Abx tx can be started prior to culture results
A
- True
10
Q
What is the 1st line tx for pertussis?
A
- macrolides
i. e. azithromycin/ZPak, erythromycin, clarithromycin, bactrim
11
Q
Who should recieve post-exposure prophylaxis and when?
A
- all asymptomatic contacts w/in 21d of onset of cough
