Final answer:
The correct action for someone with type 1 diabetes who is unconscious due to low blood glucose is to administer glucagon and call emergency services.
Step-by-step explanation:
If a person with type 1 diabetes experiences dramatically low blood glucose and becomes unconscious, the most appropriate action would be to administer glucagon and call 9-1-1.
This is because glucagon is a hormone that raises blood glucose levels by stimulating the liver to release stored glucose.
Administering insulin in a situation where blood glucose is already low could be dangerous, as insulin lowers blood glucose levels. It is critical to act quickly in cases of severe hypoglycemia, as prolonged low blood sugar can cause brain damage and other serious complications.