Pulmonary function tests are tests to assess pulmonary
function. These tests assess every aspect of our lung function. It assesses
lung compliance (dynamic as well as static), degree of airflow obstruction,
exchange of gases and other functions. Pulmonary function tests are
non-invasive and safe, as there is no requirement of insertion of any
instrument inside the human body by a health care provider. The study evaluates
the importance of Pulmonary Function Tests to assess the Lung Functional
Capacity in different physiological and disease conditions. There is a battery
of tests to assess both static and dynamic lung function. Dynamic lung function
tests mainly measure airflow rate, while static lung function tests measure
absolute air volumes. Some tests are used to measure how well our lungs absorb
oxygen in blood. Some others test the response of lungs to some triggers, like
exercise and pharmacologic agents. Pulmonary function tests are variable in
different physiological states like age, sex, exercise, change of posture,
pregnancy, etc., as well as in pulmonary diseases. Pulmonary diseases are
broadly classified into two categories: first, restrictive lung diseases, e.g.
interstitial lung disease, scoliosis, etc. and second, obstructive lung
diseases, e.g. asthma, bronchitis, bronchiectasis, etc. In obstructive lung
diseases, mainly dynamic lung functions are affected, but in restrictive lung
diseases, static lung functions are mainly affected. FEF25-75% is the most
sensitive parameter for early diagnosis of obstructive lung disease, whereas
DLCO is the most sensitive for early diagnosis of restrictive lung disease.
Author(s) Details
Mohd. Amir
Faculty of Medicine, Aligarh Muslim University (AMU), Aligarh, India.
Please see the book here :- https://doi.org/10.9734/bpi/msup/v7/7252
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