NURS 2003H Study Guide - Final Guide: Pus, Etiology, Electronvolt

• School: Trent University
• Department: Nursing
• Course: NURS 2003H
• Professor: Christabel Chu

Document Summary

Obstructive pulmonary diseases collection of chronic lung diseases: most common lung diseases, restrictive coming from the body, obstructive comes from an outside source characterized by increased airflow resistance, result of airway obstruction or narrowing. Chronic obstructive pulmonary disease (copd: emphysema, chronic bronchitis. *look at the first 4 pages of the 2017 copd guidelines (pathophysiology) *most common cause of copd is smoking, air population, and fires indoors progressive, partially reversible airflow obstruction: increasing frequency and severity of exacerbations. S&s: dyspnea, difficulty breathing, sob, exercise intolerance. Emphysema - pathogenesis chronic inflammation: airways, bronchioles, alveoli, pulmonary capillaries classic inflammatory pathway, destroys pulmonary tissues neutrophils, macrophages, lymphocytes pro-inflammatory cytokines site of destruction determines impact, alveoli, bronchioles. Emphysema -pathogenesis in alveoli destruction of alveolar wall: loss of surface area for gas exchange, loss of pulmonary capillaries due to inflammation, loss of elastic fibers, altered ventilation-perfusion ratio.