Pancreatitis (Inflammation) in Dogs
here is some info on pancreatitis sounds like you dodged a bullet
i have 3 dogs and all ate the same things and only dex got real sick. Next time they do blood make sure they do triglycerides on that panel on a 12 hr fast as i always do blood work on 12 fast just like they do in humans - if the triglycerides are high like my dex the dog is more prone to pancreatitis as the blood already has a high amount of fat content naturally so just takes a little to put them over the edge.
Pancreatitis is very expensive to treat and 50% or more of dogs die from it and yorkies are very prone to this so stay very low fat as you had a warning sign with this so it will be very easy for your dog to get this.
I would also just to be safe get pre and post bile acid test on him as it is also a sign of an issue with the liver as well as a high protein meal can make them sick and so i would want to rule out liver disease since yorkies are 38 more times likely to have liver disease so you need to rule this out before any medications in future. It is an easy test and our vet bile acids all yorkies and maltese prior to any meds since it is so common in the breeds