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Service Dog: Diabetic Alert Dogs (DADs)

Job: To alert their handler to dangerous or potentially deadly blood sugar highs and lows. Many dogs are trained to call 911 on a special K-9 Alert Phone if their partner cannot be roused.
Handler: May show signs of visible disability, but likely will not. Could be any age from very, very young to a senior citizen.
Gear: Diabetic Alert Dogs typically don’t wear special gear. DADs should carry emergency protocols in their vest if the dog would ever be the first point of contact with an emergency medical team.
Notes: Diabetic Alert Dogs are also known as “Blood Sugar Alert Dogs.”

excerpt is taken from https://www.anythingpawsable.com/types-of-service-dogs