Karina,
This is Olesia. My EPI gal was diagnosed with EPI 13 years ago and 7 years ago developed IMHA (and Diabetes and Low Thyroid)... and 11 years ago she developed central brain vestibular disease . Believe it or not, she survived it all and she is now 14+1/2 years old, mostly deaf and blind, and slowing down, but still a very happy dog!
Okay.... i am going to jump around a bit here.... you mentioned she was diagnosed with IMHA. Is her hermatocrit (HCT) in a good range now (upper 30's low 40's)??? Is she on a high dose of Prednisone and or Cyclosporine? If yes, i am guessing they have her on sucralfate.... if not, you will want to start giving her Slippery elm powder to avoid any stomach bleeds from the high dose drugs needed to control the IMHA.
Regarding EPI... glad to hear that she likes the raw pancreas.... BUT.... when the enzymes come in from EnzymeDiane, because she has or is now in remission with IMHA, you will want to feed her the enzyme powder vs. the raw .... for safety sake. IMHA can be triggered idiopathically... so you don't want to take any chances... ditto for using any harsh chemical around her and no more heart worm meds... with an IMHA survivor.
With EPI, the raw pancreas is good and well tolerated by many EPI dogs.... BUT... as mentioned above... each pancreas organ can vary in enzyme potency so it is much better to give the powdered enzymes as they are a stable source.
In addition to having to be careful because she is an IMHA survivor and to give to protect against stomach bleed with an IMHA dog.... with EPI we often give Slippery Elm first instead of reaching for antibiotics to help with SID (small intestinal dysbiosis) which all EPI dogs have to one degree or another.
I noticed you mentioned her Folate is 24.... poor Lady's SID (which is present in all EPI dogs) is out of control. SO this is another reason why you should start giving Slippery Elm..... as not only is Slippery Elm a mucilage, it also has prebiotic properties.. and often helps with SID... IF the Slippery Elm doesn;t do enough to get the SID under good controll... then yes, you will need to talk to your vet about putting Lady on antibiotics and we strongly recommend trying Tylan first over Metronidazole. But start with the SLippery ELm powder first... this too can be purchased from WOnderlabs.They started carrying it for EPI dogs at our request!
https://www.wonderlabs.com/itemleft.php?itemnum=K97024
I would start Lady on 1/8 of a teaspoon of the SLippery Elm for her SID issue....... if it helps but not enough after 3 to 5 days... then i would slightly increase the amount, but not by too much. If after a few weeks, this still has not improved enough, and she has grumbling in her tummy, gas, burping, yellowish looking pudding stools... then ask for Tylan antibiotic. 45 days twice a day.
Also, as mentioned above ... you definitely want to avoid foods with too much lentils or legumes in the food....when first starting to treat an EPI dog, another issue is initially to avoid a food with too much fiber content in it because it may interfere with the efficacy of the enzymes from anywhere from 0% to 50% ... we just never know how much from one animal to the next. This is why we suggest low fiber (grain free food) 4% and often even less than 4% fiber content in a diet works better for "most" of these dogs" ... once your dog is stable... then you can try increasing the fiber content or try a food with a little rice if you want and see how it goes... however, i must warn you, many, many EPI dogs cannot hand food with grain.. Sometimes, especially with a small dog, you can cook your own with natural ingredients like fresh meat, skinned and defatted and sweet potato and you can add (depending on tolerance) cottage cheese, kale, squash, and even an egg 3 days a week, and some organ meats and high quality vitamins and minerals that your vet recommends.. YOur vet is not too off the mark with the law fat meal....technically EPI dogs can handle normal amounts of the right kind of fat just like any other dog, once they are receiving enzymes... but if your little baby tends towards being "chunky" the a lower fat food might be okay.
I personally would hold off on the coconut oil for now... wait until your pup is stable which means poop is normal for about a month. Then you can try introducing coconut oil.
Regarding the B12... as mentioned in the posts above.... YES!!!! your dog needs B12. EPI is a chronic condition... and the B12 level needs to be upper mid range... somewhere in 500 to 600's.... higher is even better. IIn the end, all EPI dogs have to take B12. EPI dogs do NOT do well with an average B12 level cause their levels will plummet.
Also with small dogs (and i do not know why this happens) many of them do not do as well as expected on the cyanocobalamin B12.... and they do much better on Methylcobobalamin B12)... so to hedge your bets, you probably will want to start with WOnderlabs Pet Factor b12 pills
https://www.wonderlabs.com/itemleft.php?itemnum=K9688 these capsules are 1000 mcg B12 so you will have to break one of these capsules open, spread the powder on a piece of paper, form a rectangle, split the rectangle in half and give Lady one half once a day.....
I am sure you have more questions, but i hope the suggestions that i and others have given you is a good start.
Hope i didn't make too many typos.... typing this late at night...
I'll check in with you tomorrow sometime............