As I've discussed before, one low blood sugar result on a collapsed ferret in the examination room should not be a definitive reason to diagnose "insulinoma" and start the ferret on prednisone or prednisolone, without even a thorough physical examination. And yet, I am presented with a lot of these ferrets. All have virtually the same history: collapsed or laying around (ferret people call it either "speed bumping or pelting" when the ferret all of a sudden goes "flat"). They may walk or play a little and then collapse again, sometimes with hypersalivation, sometimes with pawing at the mouth, sometimes with gagging or tremors, which seem to be progressive.
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