calliecritturs
Posted : 11/16/2007 4:21:00 PM
There are very few scenarios where a dog will throw up HOURS later all food *totally undigested*. Things like renal failure and intestinal obstruction come to mind.
However - there is a vast difference between "most" "some" and "all" food. If enough food is getting thru to be processed as 'waste' (fecal matter) then yes, of course, an allergen could be possible.
A dog that had vomitted all it's food for three weeks would be seriously debilitatedm and would, I'd think, be near death.
If it were mine, I'd probably be at my state's best vet school -- it's difficult to arrive at a sensible solution from what little we can discern on a web-board. It would seriously lead me to wonder how a dog could have survived and thrived (particularly given what you've said about its rescue) to that point in life if virtually all foods were allergens.
However, a dog that simply somehow "landed" in a desert area (perhaps separated from it's family who were tourists) could have significant atopic (inhaled -- hay-fever type allergies) allergies that could cause some severe stress.
It just strikes me as extremely odd that allergies, only after 3 weeks, are being looked at as an option. If that's being said, I'd sure be looking at antihistamines to see if you can get the allergy response cooled down enough so the poor thing can eat. But medical things with dogs tend to truly "make sense" and this honestly doesn't. Not with what's been described.
The very suggestion to try an "elmination diet" sounds silly ... but the point of that would be to try one or two simple foods -- NOT a packaged diet but literally something like mashed potato and peas or something as a totally novel veg and protein to see if you can get the dog to begin to keep something down.
That would literally be simply boiled potatos mashed with a masher (no milk, no butter, nothing else). An elmination diet is done merely for 2-3 weeks -- it is SIMPLY to give a baseline and then you begin adding back in foods one at a time to see what is then well tolerated.
But I would think you'd have to get something to STAY in the gut so you can at least administer some antihistamines and see if you can begin to make ANY headway.