6253rd USAH1
Photo by Sgt. Hoai-Nam Le, 6253rd USAH, PAO. Staff Sgt. Eric Wendt, 6253rd USAH, reviews the procedures of pulmonary function tests, using the spirometer to measure lung function, which is helpful in assessing conditions such as asthma, pulmonary fibrosis, cystic fibrosis and COPD during reserve duty at Tripler Army Medical Center on 12-24 Sept 2015.