MRC dyspnoea scale,”1 – not troubled by breathlessness except on strenuous exercise2 – SOB when hurrying on a level or when walking up a slight hill3 – walks slower than most people on the level, stops after a mile or so, or stops after 15 mins walking at own pace4 – stops for breath after walking 100 yards, or after a few minutes on level ground5 – too breathless to leave the house

MRC dyspnoea scale,”1 – not troubled by breathlessness except on strenuous exercise2 – SOB when hurrying on a level or when walking up a slight hill3 – walks slower than most people on the level, stops after a mile or so, or stops after 15 mins walking at own pace4 – stops for breath after walking 100 yards, or after a few minutes on level ground5 – too breathless to leave the house

or breathless when dressing/undressing”