NURS113 Lecture Notes - Lecture 7: Large-Cell Lung Carcinoma, Cough, Iatrogenesis

• School: University of Alberta
• Department: Nursing
• Course: NURS113
• Professor: Alice Khin

Document Summary

Internal respiration: gas exchange between blood tissue. Diffusion: movement of gas from high concentration to low concentration. Ideal situation: perfect matching = blood supply + oxygen supply + airway open imbalances: under perfused: blood supply xx embolism, hypotension, vasculitis, under ventilated=hypoxemia: alveolar xx airway obstructed, damage lung tissue. *** alveolar membrane problem pneumonitis, interstitial fibrosis & pulmonary edema: perfusion without ventilation: destroyed airway, airway obstruction, ventilation without diffusion: hypotension, blood flow obstruction. Lesson 1: pulmonary disorder: ventilation disorder, hypoventilation = shallow respiration co2 , Causes: morphine, barbiturates, obesity, obstructive sleep apnea, chest wall damage, paralysis of respiratory muscles: hyperventilation co2 , o2 . Causes: pain, fever, anxiety, sepsis, brain stem injury: diffusion disorder, hypoxemia: low o2 concentration 2) Co2 concentration: pulmonary vasculature problems, pulmonary hypertension: pulmonary pressure above 25 mmhg. Normal pressure: 20-25mmhg impact on right ventricle (systemic hypertension: left ventricle: obstructive airway disorder (conditions that make it hard to exhale all air in the lung, acute epiglottitis.