Phystut13 - Respiratory Phys II Andrew MacDonald Click to...

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Click to edit Master subtitle style 2/28/10 Respiratory Phys II Andrew MacDonald phys2130uwo@gmail.com
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 2/28/10 Lung Volumes  Healthy individuals should have a forced  expiratory volume (FEV-1) that is approx  80% of the FVC
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 2/28/10 There are three types of obstructive lung disease  and can be characterized by… Diminished airflow  during expiration as a result of a narrowing of  the bronchioles.  1) Asthma  2) Chronic Bronchitis  3) Emphysema  Obstructive (Lung) Disease
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 2/28/10 Asthma – It is an inflammatory condition that is commonly  associated with changes in temperature/humidity, exercise,  and allergies.  During an asthmatic attack, the bronchoconstriction occurs  which causing a narrowing of the airways.  Pulmonary  edema is also quite common (build of fluid in the airways,  usually mucus).  Obstructive Disease – Asthma  Causes an  INCREASE  in airway resistance.  And a  DECREASE  in  airflow. 
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 2/28/10 Chronic Bronchitis  – General inflammation of the airways that is caused by  excess mucus  production by the cells lining the airways.   Chronic Bronchitis is commonly referred to as one of the two types of  Chronic Obstructive Pulmonary Disease (COPD) because it is a  progressive and chronic disease.  Cause … It is usually caused by smoking or chronic fume inhalation ( ex. always  in the presence of exhaust ).   Obstructive Disease – Chronic  Causes an  INCREASE  in airway resistance.  And a  DECREASE  in  Excess  Mucus
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Phystut13 - Respiratory Phys II Andrew MacDonald Click to...

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