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    level 5 heart murmur
    An_221315 posted:
    How quickly can a heart murmur progress? My 15 year old poodle went to our vet 2 weeks ago and was given a clean bill of health. Now, two weeks later, she started having difficulty breathing yesterday and we brought her to the emergency vet clinic, (different vet), last night. They told us she has a level 5 heart murmur. Is it possible for a dog to go from what seems to be no heart murmur two weeks ago to a level 5? She has been eating and behaving the same as always up until yesterday. Now she will not eat and has only drank a small amount of water. She is sleeping almost round the clock. She has been sleeping more within the last couple of years, but not like this. She isn't walking which that just started yesterday as well.
    Home2strays responded:
    it seems very unlikely your wouldnt have heard something. did they actually listen to your poodle? or possibly has your dog gotten into something that may have caused the heart murmur? the only thing that personally i can think of that would cause one to come on so quickly (if it really wasnt there before) is ingesting something or a tumor. did you have any xrays done?
    Annie_WebMD_Staff responded:
    Hi Anon_167182,

    I've pulled up this article about dog heart disase for you:

    Heart Rate and Irregular Heartbeat in Dogs .

    I'm sorry that your poodle isn't feeling well and I hope she will recover.

    Take care!

    - Annie
    There's nothing better than a warm fuzzy hug from your pet!

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