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When should I refer a patient with suspected or confirmed asthma to specialist

Guideline-aligned answer with reasoning, red flags and references. Clinically reviewed by Dr Kola Tytler MBBS CertHE MBA MSt MRCGP.

Posted: 7 November 2026Updated: 7 November 2026 Guideline-Aligned (High Confidence) Clinically Reviewed

Refer to an asthma/respiratory specialist for the following indications:

  • Diagnostic uncertainty in adults or children, including when objective testing has not confirmed asthma but clinical suspicion persists, for consideration of bronchial challenge testing .
  • Persistent symptoms and/or exacerbations despite good adherence to optimised ICS-containing treatment for 3–6 months, or severe or difficult-to-treat asthma .
  • Suspected occupational asthma: refer to an occupational lung disease service or asthma specialist, ideally for assessment within 6 weeks .
  • Previous near-fatal asthma: specialist supervision should continue indefinitely .
  • A severe exacerbation requiring hospital admission: respiratory specialist follow-up should continue for at least 12 months after admission .
  • Features of both asthma and COPD where treatment priorities are uncertain .
  • Asthma with food allergy and/or a history of anaphylaxis, because this combination carries increased risk of asthma-related death .

Additional paediatric referral indications

  • Under 5 years: inability to perform objective tests and symptoms not responding to initial treatment .
  • Preschool wheeze: refer to a specialist respiratory paediatrician after one hospital admission or two or more emergency department admissions within 12 months with wheeze .
  • Significant treatment adverse effects, such as faltering growth .

Educational content only. Always verify information and use clinical judgement.

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