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Chronic Obstructive Pulmonary Disease


Criteria for Diagnosis

COPD Assessment Test (CAT)

Modified British Medical Research Council (mMRC) Questionnaire


COPD Diagnosis Overview

Clinical Suspicion: Based on symptoms like dyspnea, chronic cough, and sputum production, particularly in individuals with a history of exposure to risk factors.

Spirometry Confirmation: The key diagnostic test is spirometry.

  • A post-bronchodilator FEV1/FVC ratio of less than 0.70 confirms the presence of persistent airflow limitation and, thus, COPD.

  • FEV1 (Forced Expiratory Volume in the first second) is a measurement of how much air can be forcefully exhaled in one second.

  • FVC (Forced Vital Capacity) is the total amount of air exhaled during the spirometry test.

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