Final answer:
Glucagon is released by the pancreas in response to low blood glucose levels and helps to raise blood glucose levels through glycogenolysis and gluconeogenesis. It is used in the Hypoglycemia Medical Directive to treat low blood glucose levels.
Step-by-step explanation:
The conditions for glucagon under the Hypoglycemia Medical Directive can include low blood glucose levels, such as during fasting, starvation, or exercise. Glucagon is released by the alpha cells of the pancreas in response to low blood glucose levels and stimulates the breakdown of glycogen into glucose through a process called glycogenolysis. Glucagon also promotes gluconeogenesis, the synthesis of glucose from non-carbohydrate sources, to raise blood glucose levels.