Final answer:
Insulinoma in ferrets causes hyperinsulinism and hypoglycemia, which can be relieved by glucose or sugar intake.
Step-by-step explanation:
Insulinoma in ferrets causes hyperinsulinism, which is the excessive production of insulin. This leads to hypoglycemia, which is low blood sugar levels, and is associated with symptoms such as sweating, tremors, and fainting attacks. The condition can be relieved by injecting glucose or providing sugar orally.