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.
Pulmonary Function Lab Pulmonary Function Tests (PFT) is a generic term for various breathing tests used to evaluate respiratory symptoms such as cough, wheezing and shortness of breath in the lab. They are also used to determine preoperative risk and to help diagnose common diseases such as Asthma and Chronic Obstructive Pulmonary Disease (COPD).