COPD Pathophysiology

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INTRODUCTION. 65year old male Bill Mc Donald a current smoker, presents from home with a chronic productive cough, increase shortness of breath at rest, wheezing and increase in lethargy. Bill has a past medical history of chronic obstructed airway disease, recurrent bronchial infections and current pack a day smoker. Below will be looking into the progression of the disease and effects it will have on bill and his family, also will look into the pathophisology of COPD, nursing considerations, treatment management and the community services available to Bill so he can return home safely. PATHOPHYSIOLOGY Chronic obstructive pulmonary disease in this assignment will be referred to as COPD; it is a term for collective chronic lung conditions …show more content…

When you breathe in, air containing carbon dioxide (CO2) and oxygen (O2) it moves down your trachea; a tunnel containing cartilage and smooth tissue. Air then travels through two hollow tubes called bronchi; narrow branches lined with smooth muscle, mucosal and ringed cartilage to support the structure. The bronchi divide out into smaller tunnels called bronchioles; are small branches 0.5-1mm, lined with muscular walls to help dilate and constrict the airway. At the end of the bronchioles are little air sacs called alveoli; which assist in gas exchange of O2 and CO2. (Eldridge, 2016) Towards the end of alveoli are small blood vessel capillaries. O2 is moved through the blood stream through theses small blood vessels (capillaries) at the end of the alveoli and the CO2 is then exhaled. (RolandMedically, …show more content…

Air then travels to the bronchioles which are narrow (bronchoconstriction) due to the natural defence in keeping irritants out of the airway, causing wheezing breath sounds.(Eldridge, 2016) The air then proceeds to the alveoli, which are weakened and damaged air sacs due to the progression of the disease, that are unable to efficiently move O2 into the blood stream and gas exchange CO2 to be expelled through exhale, causing hypoxemia, lethargy, dyspnoea and high CO2 reading. (“Lung conditions - chronic obstructive pulmonary disease (COPD),”

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