COPD Assessment Test (CAT)
Calculator
When to use
Cough
1
2
3
0 “I never cough”)
4.
5 “I cough all the time”)
Phlegm
1
2
3
4
0 “I have no phlegm in my chest at all”)
5 “My chest is completely full of phlegm”)
Chest tightness
1
2
3
4
0 “My chest does not feel tight at all”)
5 “My chest feels very tight”)
Breathlessness
1
2
3
4
0 “When I walk up a hill or one flight of stairs I am not breathless”)
5 “When I walk up a hill or one flight of stairs I am very breathless”)
Activities
1
2
3
4
0 “I am not limited doing any activities at home”)
5 “I am very limited doing any activities at home”)
Confidence
1
2
3
4
0 “I am confident leaving my home despite my lung condition”)
5 “I am not at all confident leaving my home because of my lung condition”)
Sleep
1
2
3
4
0 “I sleep soundly”)
5 “I don't sleep soundly because of my lung condition”)
Energy
1
2
3
4
0 “I have lots of energy”)
5 “I have no energy at all”)
Calculation
Please enter all the required inputs.