Assessment
Obtain a structured clinical history in people with suspected asthma
Symptoms to check for include:
- Wheeze: reported/on auscultation
- Noisy breathing
- Cough
- Breathlessness
- Chest tightness
- Nocturnal symptoms
Specifically check for:
- Any variation in symptoms (for example, diurnal, daily or seasonal) or any triggers
- A personal or family history of atopic disorders
- Symptoms to suggest alternative diagnoses e.g. Heart Failure
- Exposure history: smoking, occupational, pollutants, etc.
Diagnosis
Made by clinical assessment and supported by 1 or more objective test.
We suggest working through the following objective tests, in order, if available:
- Blood eosinophil count (≥0.3 x 109/L) (as part of full blood count)
- Expired nitric oxide (FeNo)
- A level ≥ 50 ppb is supportive of asthma diagnosis
- Spirometry with bronchodilator reversibility (BDR)
- initial spirometry should be obstructive [FEV1/FVC <0.7 or below Lower Limit of Normal (LLN)]
- if there is >12% and >200mL change in FEV1 from baseline following BDR, this confirms reversibility and is supportive of an asthma diagnosis
- Peak flow (PEF): ideally conducted prior to pharmacological treatment:
Referral
If all of the above tests are inconclusive: consider a referral to respiratory, via SCI Gateway, for Bronchial Challenge testing.
Management
If asthma is suspected: complete initial clinical assessment, confirm diagnosis then follow the pathway below
ALL patients should receive an ICS device on initiation of inhaled therapy.
Annual review
Aim: Good asthma control
What to include in a review, especially Annual Review:
- ✓ Review of inhaler technique and check inhaler adherence
- ✓ Check peak flow (PEF)
- ✓ Review of Personalised Asthma Action Plan
- ✓ Symptom assessment (ACT/ACQ)
- ✓ Address co-morbidities e.g. anxiety, Gastroesophageal Reflux Disease (GORD), obesity,
breathing pattern disorder, rhinitis - ✓ Address triggers and trigger avoidance e.g. occupational, allergens
- ✓ Review of exacerbations and Out Of Hours/Emergency Dept. attendances and admission
- ✓ Smoking cessation advice if applicable: Smoking cessation (Guidelines)
- ✓ Consideration of steroid side effects
- ✓ Consider DEXA referral if high dose ICS for >10 years or OCS >3 months in last year
and 10-year risk of major fracture >10% (FRAX or Qfracture)
What good asthma control looks like:
- NO daytime symptoms
- NO sleep disturbance due to asthma
- Unimpaired physical activity
- NO exacerbations
- Triggers managed (eg, hay fever)
Assess control using:


