Pulmonary function tests refer to a group of tests sed to diagnose and quantify the presence of Respiratory Disease. Pre-operatively when the time is less to assess Pulmonary function tests in detail like in Emergencies BED SIDE PULMONARY FUNCTION TESTS are done. Snider's Match Blowing Test: This test is based on individual S ability to blow out a match with mouth open, no lips pursuing from. three, six and nine inches away Subject with normal ventilation function , blows at nine inches distance .
Patients who are unable to blow at six inches distance have some ventilatory defect usually obstructive and most patients are unable blow. At three inches distance had combined Defects. Modified Snider's test , 3 inches (maximum breathing capacity) >40L/min 6 inches MBC > 60L/min 9 inches MBC > 150L,/min Forced Expiratory Time FET The subject is asked to take a deep breath in and exhale as…
