Oh Karen I am so sorry this has happened and on top of all the problems you have with Ruby as well. I agree with Karlin Stone Lion clinic will know where to refer and are fantastic. I thought you would like to know however, VRCC are quite close to you so you won't have so much travelling, they are supposed to be on of the best referral places in the country with all the latest equipment, they have a new Cardiology Service. http://www.vrcc.co.uk/vrcc.html
My friend has a rare condition with her Spaniel, they fed him naturally and were able to scan him without a general so they could see what was happening.
Hope this helps.
Tania and The Three Cavaliers!
Dotty!- A Sweet Little Tri
Molly - Pretty Tri Dougall - Gorgeous Blenheim