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Pulmonary function testing (PFT) is a complete evaluation of the respiratory system including patient history, physical examinations, and tests of pulmonary function. The primary purpose of pulmonary function testing is to identify the severity of pulmonary impairment. [ 1 ]
Instruct the patient to inhale and observe the movement of the thumbs on the patient's back. Repeat the process with each hand on the lower margin of the ribcage at the front of the chest to further observe chest expansion. Asymmetry in chest expansion may be due to disease of lung or pleura. [14]
Doing spirometry. Spirometry (meaning the measuring of breath) is the most common of the pulmonary function tests (PFTs). It measures lung function, specifically the amount (volume) and/or speed (flow) of air that can be inhaled and exhaled.
The pulmonary examination or respiratory examination is the portion of the physical examination where the physician examines the respiratory system for signs of disease. It is performed as a part of a complete physical examination , or the physician may choose to perform a focused respiratory exam.
Diffusing capacity of the lung (D L) (also known as transfer factor) measures the transfer of gas from air in the lung, to the red blood cells in lung blood vessels. It is part of a comprehensive series of pulmonary function tests to determine the overall ability of the lung to transport gas into and out of the blood.
[3] [13] It is the most common method used to sample the epithelial lining fluid (ELF) and to determine the protein composition of the pulmonary airways. [ 3 ] [ 13 ] BAL has even been used therapeutically to remove mucus ( sputum ), improve airway ventilation, and reduce airway inflammation in conditions such as chronic obstructive pulmonary ...