Hi all, We have the opportunity to bring a lab puppy into our home - but we found out with her 8 week check up that she had a Grade 3 heart murmur. Vet said it could go either way - could be a sign of a major issue or could be innocent and correct itself because she is the "runt". She's about 2 weeks behind her siblings in size. Doesn't appear to have any symptoms or odd traits to signal a heart issue (trouble breathing, lethargy, etc)... she has another check up this Saturday where they'll see if the murmur has changed. Does any one have experience with anything similar that could offer advice? What questions to ask? I have Google'd for 'statistics' regarding what the chances are that it will heal on it's own, but can't find any % stats to help with our decision. Thanks!!