So clearly something was up and we took him to the vet. They took his vitals and heart rate 220 which the vet explained to be extremely high for a young healthy large breed dog. They thought that improper blood flow could be the reason for the weakness. ECG came back without any obvious arrythmias and he improved somewhat in the vet's office. Heart rate went down although still high and vet thought she heard a soft murmur. They sent us home with instructions to monitor his heart rate and see what happens and to consider an ultrasound of his heart next.
He did not do any significant exercise yesterday nor can I think of anything he got into which might have poisoned him. He was completely normal yesterday and last night. Assuming there isn't anything else causing the heart rate, they want to investigate his heart for dilated cardiomyopathy. I've not heard much about heart problems in ridgebacks.
I know it's a long shot and you're not vets, but has anyboy experienced anything like this? He's home resting, and he did eat but is still shivering while he sleeps. Poor luv I wish I could figure out what it is or make him more comfortable.
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