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Dog with cough, rapid breathing, heart murmur. Heartworms or CHF?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Large (61lb +) | Male | neutered | 8 years and 3 months old | 60 lbs

DOG HAS COUGH, MURMUR, AND RAPID BREATHING AND CONGESTION. WHAT IS DIFFERENCE BETWEEN HEART WORMS AND CHF. OF COURSE WORMS...BUT VET IS NOT OPEN TODAY. CAN I JUST GIVE HIM THE LISINOPRIL 0.5 MG/KG Q 24 HR? AND A BECAUSE THIS IS ALL I HAVE LISINOPRIL AND THIAZIDE DIURETIC...THIAZIDE 2-4MG/KG BID...CAN I GIVE HIM THAT..EVEN THOUGH IT MIGHT BE HEART WORMS BUT JUST IN CASE IF IT IS CHF..CAN I GIVE HIM THAT/?????

1 Answer

Most Helpful Answer

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Answered By Jacqueline Nobles, DVM, DACVECC

Veterinarian, Board-Certified Emergency/Critical Care Specialist

Published on April 23rd, 2017

Heartworm are know to lead to cardiac disease specifically pulmonary hypertension and blood clots to the lungs. Unfortunately, he is in heart failure until proven otherwise. Neither lisinopril or a thiazide are likely to improve symptoms of CHF significantly. Ultimately, he needs lasix if he is congestive heart failure. However, first a veterinarian must make the diagnosis. The best thing to do for George is the get him to the nearest veterinary emergency hospital as soon as possible.

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