Flashcards in Acute asthma Deck (16):
What can cause airway compromise in patients?
What signs would be associated with potential airway compromise?
Use of accessory muscles
Diminished breath sounds
What might be heard when auscultating a patients chest with acute asthma?
Reduced air entry
Wheeze - becomes less apparent with increasing obstruction
How much oxygen should be used?
15L through a non-rebreather
What drug is used as a first line agent in asthma?
How often should nebulised salbutamol be given in an acute, severe, asthma attack? And at what dose?
When required or every 20-30mins
What dose of steroids should be given PO in acute asthma?
If the oral route is not available to give steroids, what route and agent should be used?
(100mg every 6 hours)
Other than salbutamol, what other nebulised drug should be started initially?
Ipratropium Bromide (0.5mg 4-6hourly)
What circulatory interventions should be performed?
What bloods should be taken?
What other drugs can be used in the treatment of acute asthma (not salbutamol/steroids/ipratropium)
IV Magnesium sulphate
What is the typical ABG picture in acute asthma?
pH - alkalosis often present due to hyperventilation
PaCO2 - often low due to hyperventilation
PaO2 - may be low
What criteria would suggest a moderate asthma exacerbation?
Increasing asthma symptoms. PEFR >50-70% of best or predicted.
No features of severe asthma.
What criteria would suggest a severe asthma exacerbation?
PEFR 33-50% of best or predicted
Respiratory rate greater or equal to 25 breaths/min
Pulse greater or equal to 110 beats/min
Inability to complete sentences in one breath