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What do your symptom grades for chronic obstructive pulmonary disease mean?

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You’ll fill out a questionnaire -- usually, the COPD Assessment Test (CAT) or the Modified Medical Research Council (mMRC).

CAT scores range from 0-40 and mMRC scores have four grades. For example, if you report that you only get winded when you do hard exercise, you might have mMRA Grade 0. If you report being so breathless you can’t even leave the house or get dressed, you could have mMRA Grade 4.

From: COPD Stages and the Gold Criteria WebMD Medical Reference

SOURCES: COPD Foundation: “What is COPD?”

Global Initiative for Chronic Obstructive Lung Disease: “Global Strategy for Diagnosis, Management, and Prevention of COPD – 2016,” “The Global Initiative for Chronic Obstructive Lung Disease (GOLD).”

American Family Physician , Nov. 16, 2013.

UpToDate: “Chronic obstructive pulmonary disease: Definition, clinical manifestations, diagnosis, and staging.”

Mayo Clinic: “Spirometry.”

Reviewed by Minesh Khatri on July 17, 2019

SOURCES: COPD Foundation: “What is COPD?”

Global Initiative for Chronic Obstructive Lung Disease: “Global Strategy for Diagnosis, Management, and Prevention of COPD – 2016,” “The Global Initiative for Chronic Obstructive Lung Disease (GOLD).”

American Family Physician , Nov. 16, 2013.

UpToDate: “Chronic obstructive pulmonary disease: Definition, clinical manifestations, diagnosis, and staging.”

Mayo Clinic: “Spirometry.”

Reviewed by Minesh Khatri on July 17, 2019

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What do your spirometry grades for chronic obstructive pulmonary disease mean?

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