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Why Does Chronic Obstructive Pulmonary Disease Patient Absorb Oxygen Concentration Can't To Be Too High?

May 19, 2018

Chronic obstructive pulmonary disease (copd) is an important chronic respiratory disease with high morbidity and mortality.The main symptoms of | chronic obstructive pulmonary disease are: chronic cough and development with the course of disease;White mucous or serous froth;Even during the break, shortness of breath and difficulty in breathing;Breathing chest tightness ^ and chronic obstructive pulmonary disease patients with plateau for long-term family oxygen treatment, can improve the patients survival rate, the patient's motor ability and mental state have beneficial effects.Oxygen oxygen spa is refers to by the patient to improve arterial oxygen partial pressure, improve the hypoxia caused by the oxygen decreased, the brain, heart, kidney and other viscera function to maintain, oxygen spa can also reduce oxygen when the heart rate, respiration increased workload of heart and lung.But why do patients with chronic obstructive pulmonary disease do not have too much oxygen concentration?

(1) chronic obstructive pulmonary disease patients often suffer from chronic respiratory failure due to airway obstruction, and most patients are accompanied by varying degrees of hypoxia and carbon dioxide retention.Oxygen therapy needs to keep low concentration of oxygen, oxygen concentration not more than 35%.Prevent excessive blood oxygen content.

(2) when the oxygen pressure is less than 60mm mercury column, it can stimulate the peripheral chemical sensor, reflex excitatory respiratory center, enhance respiration, and promote carbon dioxide emission.When patients with chronic obstructive pulmonary disease exhale carbon dioxide continuously rising, it can significantly inhibit the respiration center excitation.

(3) carbon dioxide retention in patients with chronic obstructive pulmonary disease chronic hypercapnia, makes the respiratory center of chemical sensors for co2 reactivity difference ◦ breathing depend mainly on hypoxemia chemoreceptor stimulus to keep foreign weeks, breathing were suppressed if inhaled high oxygen will cause ventilation conditions deteriorate further, carbon dioxide, serious when anesthesia in carbon dioxide.