Lung function test interpretation pdf file

The sources of variation in lung function testing and technical aspects of. Understand the interpretation of pulmonary function tests pfts step by step with this clear explanation from dr. Spirometry of obstructive lung diseases gamal rabie agmy, md, fccp professor of chest diseases, assiut university. Pdf interpretation of lung function tests researchgate. A stepwise approach to the interpretation of pulmonary. Restriction defined as tlc 120% predicted residual volume rv functional residual capacity frc.

Pulmonary function tests is a generic term used to indicate a. Interpreting lung function tests wiley online books. The interpretation of pulmonary functions tests requires knowledge of respiratory physiology. Interpretation of common lung interpretation of common lung. Identify early changes in lung function that might show a need for a change in. Not timedependent expiratory vc evc vsinspiratoryvc ivc pulmonary function testing are lung volumes. Compare your lung function with known standards that show how well your lungs should be working.

A stepwise approach to the interpretation of pulmonary function tests. This section is written to provide guidance in interpreting pulmonary function tests pfts to medical directors of hospitalbased laboratories. The volume of air that is inhaled into the lung during a maximal forced. Johnson, md, mph, tripler army medical center, honolulu, hawaii. Interpretation of common lunginterpretation of common lung. Pulmonary function testing is a group of tests that provide objective data on a patients lung function. Interpreting pulmonary function tests european respiratory society. Facp, frcpc, fccp, fccm, faha director pulmonary vascular program confidential1 dos cme course 2011oxtober 2010. Below are brief descriptions of eight separate volumes of air, which are measured during lung volumes testing. Interpretation of common lunginterpretation of common lung function tests raed a. Pulmonary function test interpretation explained clearly by. Measure the effect of chronic diseases like asthma, chronic obstructive lung disease copd, or cystic fibrosis on lung function. Static lung function test lung volume frc rv, tlc slow vital capacity svc maneuver maximal amount of air exhaled slowly and steadily from full inspiration to maximal expiration.

Total lung capacity tlcis the maximum amount of air that your lungs can hold, measured at the very top of an inhalation. Interpretative strategies for lung function tests american thoracic. Forced expiratory volumes fev1 and fvc6 and capacity fvc. Lung function assessment is the central pillar of modern respiratory diagnosis, providing invaluable information to assist in clinical decision. Pulmonary function testing pft made simple iowa head. Simple interpretation of pulmonary function tests 1. The qualitative aspect looks at a portfolio of results spirometry, lung volumes, gas transfer and muscle pressures and makes a physiological diagnosis of 1. Uncharacterized pulmonary diseasedefined as history of. These tests must be interpreted within the context of the patients history and physical examination, though their patterns can suggest different categories of respiratory disease. Recognize the pattern, and the diagnosis will follow. A tutorial in pulmonary function test interpretation. The atsers task force on lung function testing recently proposed guidelines for the interpretation of pulmonary function tests and suggested that a reduction in fev1 be used for categorizing.