A Descriptive Study of Arterial Blood Gas Patterns in Chronic Obstructive Pulmonary Disease

Background: COPD is one of the major causes of chronic morbidity and mortality worldwide. It is the fourth leading cause of death in the world(1). Chronic airow limitation of COPD is caused by a mixture of small airway disease (obstructive bronchiolitis) and parenchymal destruction (emphysema), the relative contributions of which vary from person to person. Aim and Objective of the study: To Study the changes of Arterial blood gases in COPD phenotypes. Methods: This Descriptive study was carried out on the patients with chronic obstructive pulmonary disease who were admitted to Victoria hospital, Bangalore from AUGUST 2021 to OCTOBER 2021. Arterial blood gas analysis was used as a diagnostic test in 110 cases of Chronic Obstructive Pulmonary Disease. Interpretation and Conclusion: ABG sampling constitutes a more precise measure of successful gas exchange, oxygenation and happens to be only reliable determination of ventilation success as reected by CO2 content . It also provides valuable information on the acid base balance at a specic point in the course of a patient's illness and plays an important role in the management of Chronic Obstructive Pulmonary Disease. Patients regularly treated in phases of Remission and Exacerbations of COPD the course of illness is slower. Decrease of pH and PaO2 and increase of PaCO2 is statistically signicantly smaller in those received regular treatment in phases of remissions. ABG analysis is indicated in acute exacerbations, during assisted ventilation and to decide prognosis. It should become an integral part of patient management.