The duration of a hypoglycemic episode in pets can vary depending on the cause, severity, and type of animal. For example, in cats and dogs with diabetes, a hypoglycemic episode can typically be resolved quickly with a source of glucose or simple carbohydrates, and blood sugar levels can return to normal within 10 to 20 minutes. However, the duration of a hypoglycemic episode can be longer in pets with other underlying medical conditions, such as liver disease or insulinoma (a type of tumor that produces insulin). In these cases, the underlying condition may need to be treated in order to prevent future episodes of hypoglycemia.