Oregon used to be home of the worldâs tallest Sitka spruce, until a winter storm snapped the tree practically in half. But, as Pete Springer reports, the spruce will remain on the state's list of heritage trees. If youâve driven Highway 26 to the Oregon coast, youâve probably seen the sign that says, âWorldâs Tallest Sitka Spruceâ. The sign is still there, but a December storm snapped off the 200-foot tall tree. That led to debate over whether Oregonâs first heritage tree still deserved the status.
Purpose of Pulmonary Function Tests. In the diagnosis of COPD, pulmonary function tests are performed to assess lung function and determine the degree of damage to the lungs. Along with a patient's history and physical, lung imaging studies (chest X-ray, CT scan) and open lung biopsy, PFTs are critically important to evaluate respiratory health.
Body plethysmography is only one method used to diagnose and manage respiratory diseases. Discuss all your testing options with your doctor to understand which tests are best for you. Other procedures that may be performed. Body plethysmography is a type of pulmonary (lung) function test. Your doctor will likely recommend one or more other pulmonary function tests to diagnose and monitor your respiratory disease. Pulmonary function tests include: Arterial blood gas test to measure oxygen and carbon dioxide blood levels and other factors.