DV Medical Supply, Inc.
2000 W 135th Street
Gardena, CA. 90249
a. A dog with modified New York Heart Association (NYHA) Class II heart failure has fatigue, shortness of breath, coughing, etc. apparent when ordinary exercise is exceeded.
b. A dog with modified NYHA Class III heart failure is comfortable at rest, but exercise capacity is minimal.
c. A dog with modified NYHA Class IV heart failure has no capacity for exercise and disabling clinical signs are present even at rest.