Final answer:
Additional tests that may be ordered if minimum FEV1 or FVC requirements are not met include peak expiratory flow measurement, spirometry, chest X-ray or CT scan, and pulmonary function testing.
Step-by-step explanation:
When the minimum FEV1 or FVC requirements are not met, additional tests may be ordered to further evaluate lung function. These tests may include:
- Peak expiratory flow (PEF) measurement: This test measures the maximum speed at which a person can exhale forcefully. It can help identify airway obstruction.
- Spirometry: This test measures several lung volumes and capacities, including FEV1 and FVC. It provides a more detailed assessment of lung function.
- Chest X-ray or CT scan: These imaging tests can help identify structural abnormalities or diseases affecting the lungs.
- Pulmonary function testing: This comprehensive test evaluates various aspects of lung function, including gas exchange, lung volumes, and airflow.