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Obstructive Lung Disease
Aka: Obstructive Lung Disease, Obstructive Lung Function- See Also
- Causes
- Diagnosis: Pulmonary Function Test Findings
- Criteria
- FEV1 to FVC Ratio <0.7 (or <LLN or for children<85% of predicted) AND
- Normal FVC or FVC response to Bronchodilator
- Approach
- Assess Severity
- See FEV1 interpretation above
- Assess Bronchodilator response
- Bronchodilator response with FEV1 or FVC increased >12% at any age (or >200 ml in adults)
- Consistent with reversible Obstructive Lung Disease (Asthma)
- Inadequate Bronchodilator response
- Consistent with irreversible Obstructive Lung Disease (COPD)
- Bronchodilator response with FEV1 or FVC increased >12% at any age (or >200 ml in adults)
- Assess Severity
- Criteria
- References