Variable Airflow Obstruction
Step 2 of the All-Wales Adult Asthma Diagnostic Guideline focuses on the objective evidence required to demonstrate variable airflow obstruction. Included in this Step are the standard investigations; Spirometry with Reversibility, PEF diary, and Fractional Exhaled Nitric Oxide, which Katie explores further in this Tutorial.
Step 2 of the All-Wales Adult Asthma Diagnostic Guideline focuses on the objective evidence required to demonstrate variable airflow obstruction. Included in this Step are the standard investigations; Spirometry with Reversibility, PEF diary, and Fractional Exhaled Nitric Oxide, which Katie explores further in this Tutorial.
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Asthma is defined as a clinical diagnosis, supported by tests of airway obstruction, hyper-responsiveness, and inflammation. The All-Wales Adult Asthma Diagnostic guideline provides a simple, step-by-step pathway for making a diagnosis of Asthma in Wales.