Just diagnosis is need to be.

 As for a put diagnosis a chronic heart failure, you need visit for tests are ECG, blood test as test on cholesterol, tests for functions kidneys and liver, ECHO ECG, as for a finding a structure destroy of heart muscle, camera heart sizes, valve apparatus condition.As importance criterium for a shortening characterizing a fraction of blowout a left ventricular .As this index shows a reflection of size a blood, pushing out by a left ventricular as on a moment his shortening  in aortha space. As a norm for fraction are 50-65 percents  As in chronic heart failure is less blowout,thus index is lowering. As an importance to define a physical ppossibles in patient, as with tolerance to load is calculation distance by a 6 min a walk as goal this method to check a distance as of metres,which patient is ability to walk within 6 min as on a possible temp. As more walk, that a better result  a defining of functional  class a chronic heart failure , as a first most high are 426-  550 metres, second are 300-426, third are 150-300 , fourh is very low and very risk for health are less on 150 metres.

 As a most hard, informative, controlling physical loading a procedure   is stress -ECHO ECG, as she allows to check a life ability  in blood supply  of myocard.