Fig. 1: Decision tree used by the chest physicians to support their assessment of chronic lung disease diagnoses based on GOLD and GINA guidelines22. | npj Primary Care Respiratory Medicine

Fig. 1: Decision tree used by the chest physicians to support their assessment of chronic lung disease diagnoses based on GOLD and GINA guidelines22.

From: Diagnostic differentiation between asthma and COPD in primary care using lung function testing

Fig. 1

#Postbronchodilator forced expiratory volume. +Postbronchodilator vital capacity. *12% change in FEV1 (after bronchodilation), with a change of at least 200 mL. ~ Bronchial hyperresponsiveness (positive at a provocative histamine concentration ≤ 8mg/mL). @Skin prick test.

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