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COUGH - Coggle Diagram
COUGH
Pathophysiology
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When this defense mechanism is impaired or overwhelmed by increased secretions, cough then becomes an important means of secretion removal.
For cough to be effective, the linear velocity of gas traveling through the airways should be high.
Since the linear velocity of gas is related to flow and the cross-sectional area of the airways, cough is most effective when expiratory flows are great (effort independent) and dynamic compression (effort dependent) leads to a reduction of the cross-sectional area of the larger downstream airways
Cough failures may be related to either inadequate generation of expiratory flow rates (that is, in obstructive lung disease or inspiratory muscle weakness.
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Nursing intervention
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Give prescribed expectorants , mucolytics and antitussives
Observe and record cough , it's frequency , sputum production and nature thereof associated symptoms
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Definition
coughing is the most common symptom of broncho- pulmonary disease . It is a protective reflex used to clear the airways of excess mucus or foreign substances.
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