Flashcards
HPA asthma
Cards in this deck (13)
- 1What is asthma?Chronic condition causing inflammation of the airways
- 2What is the prevalence of asthma?approx. 2.5 mill in Australia
- 3What are the risk factors?Other allergies
Obesity
Smoker
Genetic component - 4What is the cause of asthma?Not well known - some suggestions that parental smoking may play a role
- 5Triggers of acute asthma episodes/ attacksEnvironmental allergens
Irritants such as cigarette smoke
Resp. tract infections.
Certain medications (i.e. aspirin)
Exercise
Emotional stress
Food additives - 6General pathophys of asthmaAirways in persistent state of inflammation
Oedema present in airway tissues - 7Pathophys of asthma during an acute episodeInflammatory mediators are released in response to trigger
This leads to airway hyperresponsiveness causing bronchoconstriction = airway obstruction
The inflammatory response leads to oedema and hypersecretion of mucus in the airways - further restricting the airways. - 8Symptoms of acute asthmarecurrent episodes (acute attacks) of:
High-pitched expiratory wheeze
Breathlessness
Chest tightness
Non-productive cough
Increased WOB
Hypoxia - 9Respiratory assessment findings of acute asthmaMay hear normal lung sounds or wheezing during acute phase. In a severe attack, there may be no or limited air entry noted.
Accessory muscles may be used
Tracheal tug may be present - 10What might vital signs do during an acute episode of asthma?RR, HR = may increase
BP = initial increase and then decrease if continues in severity
SpO2 = decrease - 11path tests that may be carried out and what they might indicateFBE - eosinophils ^
ABGs = initially show hypoxaemia & mild resp. Alkalosis. More severe will show start to show resp. Acidosis. - 12Other tests?RFTs - to evaluate the degree of airway obstruction.
- 13Relevant medicationsSalbutamol (acute tx)
Seretide (prevent)
Ipratropium bromide (prevent)
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- Description
- User has deleted their subject information Flashcards on HPA asthma, created by Deleted user on 06/06/2018.
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- Deleted user · Jun 2018
- Updated
- Jun 6, 2018
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- Created by Em J · Jun 6, 2018
- Copied by Em J · Jun 6, 2018
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