Friday, January 8, 2010

- Grades of Dyspnea.

Grades of Dyspnea
Two scoring systems can be adopted to evaluate the dysnea changing it from subjective complaint to objective complaint.

1-American Thoracic society score (ATS):
Grade 0:- No breathlessness except with strenuous exercise.
Grade 1:- Breathlessness when hurrying on the level or walking up a slight hill.
Grade 2:- Walks slower than people of the same age on the level because of breathlessness or has to stop for breath when walking at own pace on level.
Grade 3:- stop for breath after walking about 100 yards (96 meter) or a few minutes on the level.
Grade 4:- Too breathless to heave the house or breathless when dressing or underdressing.

2-New york heart association score (NYHA)

There are four functional  grades of  Dyspnea as follows:-

1. Grade I (minimal Dyspnea):  Dyspnea on running or on doing more than ordinary effort .

2. Grade II : on doing ordinary effort .

3. Grade III (considerable Dyspnea) : on doing less than  ordinary effort .
4. Grade IV : Dyspnea at rest.

*Ordinary effort is that of the person himself as regard his previous effort tolerance and usual life style.

- Basics of respiratory medicine,Staff members,Thoracic medicine department,mansourauniversity,3ed,2009,symptoms of chest disease P.g 57.

Return to list of medical grades (click here) 


  1. dyspnea in ordinary and less than ordinary work is subjective.... do u hv more conclusive description for it?

  2. Anonymous:
    -ordinary physical activity e.g.walking, climbing stairs.

    -less than ordinary physical activity e.g walking short distances (20–100 m).

    you are welcome

  3. Thnx a lot! I got both systems under one roof!!

  4. Allah yubarik fik akhi au ukhti..

  5. thank u so much...i needed it for my medicine class


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