mMRC (Modified Medical Research Council) Dyspnea Scale
Stratifies severity of dyspnea in respiratory diseases, particularly COPD.
When to Use
Dyspnea only with strenuous exercise0
Dyspnea when hurrying or walking up a slight hill+1
Walks slower than people of the same age because of dyspnea or has to stop for breath when walking at own pace+2
Stops for breath after walking 100 yards (91 m) or after a few minutes+3
Too dyspneic to leave house or breathless when dressing+4
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