Modified Medical Research Council (mMRC) dyspnea scale is used to assess the severity of breathlessness in COPD patients.
Grade | Description |
0 | I only get breathless with strenuous exercise. |
1 | I get short of breath when hurrying on level ground or walking up a slight hill. |
2 | I walk slower than people of the same age on level ground because of breathlessness, or I have to stop for breath when walking at my own pace on the level. |
3 | I stop for breath after walking about 100 yards or after a few minutes on level ground. |
4 | I am too breathless to leave the house or I am breathless when dressing or undressing. |