Asthma Flashcards
What is asthma?
paroxysmal and reversible obstruction of airways due to inflammation and bronchial hyper-responsiveness
What is the atopic triad?
Asthma, eczema, hayfever
How many people in the UK are recieving treatment for asthma?
5.4 million
Risk factors for asthma (6)
atopic history, FH, obesity, prematurity/low birth weight, smoking, early exposure to broad spectrum abx
What is Samter’s triad?
Patients with asthma are more likely to have aspirin hypersensitivity and nasal polyps
At what time of day is asthma worse?
night
During at acute attack of asthma, what are likely symptoms?
- fast/laboured breathing
- hyperinflation of chest
- in children: intercostal recession
- expiratory ronchi
- widespread wheeze
What are the spirometry findings in asthma?
low FEV1
What are the PEFR findings in asthma?
low, with bronchodilator reversibility
Diagnostic criteria for asthma
- clinicl history
- diurnal variation of >20% on PEFR for at least 3 days/wk for >2wks
- low FEV1/PEFR with positive affect post-bronchodilation
What is PEFR
peak expiratory flow recording - shows maximum speed of expiration
What is the step up treatment for asthma in adults?
- SABA PRN
- add regular ICS
- add regular LABA (/LAMA)
- increase ICS
- add oral steroids