Asthma management adults Flashcards
An adult presents with symptoms generally suspicious of asthma
What are these symptoms?
wheeze
cough
breathlessness
chest tightness
If a patient presents with suspicious symptoms, what aspects of the History of PC would help a diagnosis?
Recurrent episodes of symptoms
Symptom variability
Absence of symptoms of alternative diagnosis
Apart from a history, what else would you consult for evidence towards a diagnosis of asthma?
Previous medical records of:
Recorded observation of wheeze
History of atopy
Historical record of variable PEF or FEV1
Before a diagnosis of asthma is made, the patient may be prescribed something. What is this and why?
Monitored treatment with low dose ICS
Key feature of asthma is it’s reversibility - if the obstructions ceases with the test inhaler then it shows this
What are the features of ‘moderate acute asthma’?
Increasing symptoms
PEF >50–75% best or predicted
No features of acute severe asthma
What are the features of ‘acute severe asthma’?
Any one of:
PEF 33–50% best or predicted
Respiratory rate ≥25/min
Heart rate ≥110/min
Inability to complete sentences in one breath
What are the features of life threatening asthma?
In a patient with severe asthma any one of:
PEF <33% best or predicted
SpO2 <92%
PaO2 <8 kPa
Normal PaCO2 (4.6–6.0 kPa)
Silent chest Cyanosis Poor respiratory effort Arrhythmia Exhaustion Altered conscious level Hypotension
What are the features of Near fatal asthma?
Raised PaCO2 and/or requiring mechanical ventilation with raised inflation pressures
What is the inhaler for an initial diagnosis of asthma presenting with infrequent, short lived wheeze?
SABA - Salbutamol
Symptom relief as required
If a patient has:
Had an asthma attack in the past 2 years
Symptomatic ± used their SABA 3 or more times per week
Has night symptoms
What is their recommended treatment?
SABA & low dose ICS
ICS - 100 μg : 2
(100μg:2 = 100 micrograms 2 puffs per day)
If a patient is on SABA and Low dose ICS but symptoms are failed to be controlled, what is the next step?
SABA
Low dose ICS
Inhaled LABA
How is an inhaled LABA often added to a treatment regime?
Low dose ICS and LABA often given as a combination inhaler
A patient uses a SABA and a combination inhaler (Low dose ICS + LABA) but is failing to control their symptoms
The addition of a LABA does not seem to be making a difference
How do you change their treatment?
Stop LABA and increase dose of ICS ‘beclometasone’ to 200μg:2
- If no response to LABA then stop the combination inhaler and just give them a medium dose ICS
A patient uses a SABA and a combination inhaler (low dose ICS + LABA) but is failing to control their symptoms
The addition of a LABA has improved symptoms but overall control is still inadequate
How do you change their treatment?
Continue LABA and increase dosage of ICS ‘beclometasone’ to 200μg:2
or
Consider adding another therapy such as:
LTRA or
SR theophylline or
LAMA
A patient requires high dose therapy as their current management; a SABA, LABA and medium dose ICS is not working
What do you do
Increase ICS ‘beclometasone’ to high dose of 200μg:4
or
Adding 4th* drug to therapy - either an LTRA, SR theophylline, beta agonist tablet or LAMA
You definitely would also refer patient for specialist care