This is what one of the members suggested to me:
There are 3 tests that can be done at the same time and it is more cost effective to do the together than separately...and will give you some answers (either pinpoint a problem or rule them out). Needs to be done with a 12 hour food fast (water is ok): cTLI is for the EPI, cobalamin is for B12 levels (low B12 can cause a # of different things) and folate.
Misty- Samoyed Mix, Tannor- Golden Retriever CGC
Robyn- GSD CGC, TC, Midnite-GSD CGC,TC, Brennan-Golden Retriever CGC, Batman-Husky/Greyhound , Apollo-GSD