Practical Respiratory Clinical Therapeutics Flashcards
What is the preferred device for patients younger than 4 years old?
PMDI plus spacer with a face mask
What is the preferred device for patients 4-6 years old?
PMDI plus spacer with a mouthpiece
What is the preferred device for patients older than 6 years old?
DPI OR PMDI plus spacer with mouthpiece OR Autohaler
By definition, what makes a week an uncontrolled week?
By definition, any exacerbation in any week makes that an uncontrolled week.
- any exacerbation should prompt a review of maintenance to ensure that it is adequate
Characteristic: Daytime symptoms
What is considered controlled (green)?
<2/week
Characteristic: Daytime symptoms
What is considered partly controlled (yellow)?
> 2/week
Characteristic: Limitation on activity
What is considered controlled (green)?
None
Characteristic: Limitation on activity
What is considered partly controlled (yellow)?
Any
Characteristic: Nocturnal symptoms / awakenings
What is considered controlled (green)?
None
Characteristic: Nocturnal symptoms / awakenings
What is considered partly controlled (yellow)?
Any
Characteristic: Need for reliever / rescue treatment
What is considered controlled (green)?
<2/week
Characteristic: Need for reliever / rescue treatment
What is considered partly controlled (yellow)?
> 2/week
Characteristic: Lung function (PEF/FEV1)
What is considered controlled (green)?
Normal
Characteristic: Lung function (PEF/FEV1)
What is considered partly controlled (yellow)?
<80% of predicted or personal best
Characteristic: Exacerbations
What is considered controlled (green)?
None
Characteristic: Exacerbations
What is considered partly controlled (yellow)?
1 or more per year
What is considered uncontrolled (red)?
- 3 or more features of partly controlled asthma in any 1 week
- 1 exacerbation in any 1 week
What are symptoms of acute severe asthma?
- anxiousness
- acute distress
- severe dyspnoea
- SOB
- chest tightness or burning
- the patient is only able to say a few words
- symptoms are unresponsive to usual measures
What are signs of acute severe asthma?
- expiratory and inspiratory wheezing on auscultation
- dry hacking cough
- tachypnoea
- tachycardia
- pale or cyanotic skin, hyper-inflated chest
- PEF less than 40% of normal
- O2 sats by pule oximetry less than 90%
What is the treatment for acute severe asthma?
- O2 via face mask (40%)
AND - Beta-2 agonist via nebulizer (must use an O2 driven nebulizer) - Salbutamol or Fenoterol
OR
IH beta-2 agonist (large-volume spacer)
AND - Systemic corticosteroids are essential
- oral prednisone or IV hydrocortisone or IV methylprednisolone
- only give IV if not able to swallow
When should additional therapy be given following standard therapy in acute severe asthma?
Additional therapy when symptoms do not improve & in severe and imminently life-threatening situations
What additional therapy can be given following standard therapy in acute severe asthma?
- Ipratropium Bromide / beta-2 agonist
- Theophylline (aminophylline)
- IV beta-2 agonist
What additional therapy can be given in acute severe asthma only if severe and life-threatening?
IV magnesium sulphate
What additional therapy can be given in acute severe asthma only prior to respiratory arrest?
Intubation and ventilation
What additional therapy can be given in acute severe asthma if moribund and ONLY if moribund?
Epinephrine
For acute severe asthma, what should patients be discharged with once improved?
- Short course of oral corticosteroids (prednisone for 7-14 days)
- Improved asthma plan
- Re-inforce inhaler technique
- Letter to treating doctor / pulmonologist if present to ER
How is exercise induced asthma treated?
SABA e.g. Salbutamol - 15 minutes prior to exercise (most preferred)
OR
LABA with ICS - Salmeterol + Fluticasone - 30 minutes prior to exercise
OR
Montelukast once daily at night
How should geriatric asthma patients be treated?
Insensitive toward beta-2 agonists with age & adverse effects e.g. tachycardia and tremor are common
= Use Ipratropium Bromide as first line “reliever”
(remember it has an onset of action of 30 minutes)