A glucagon emergency kit is prescribed for a client with type 1 diabetes mellitus. When should the nurse instruct the client and family that glucagon needs to be administered?

A) Before meals to prevent hyperglycemia: This is incorrect. Glucagon is not administered to prevent hyperglycemia; it is specifically used to treat severe hypoglycemia when the patient is unable to consume carbohydrates. B) When signs of severe hypoglycemia occur: This statement is correct. Glucagon is indicated for use in cases of severe hypoglycemia, particularly when the individual is unable to take oral glucose or food due to altered consciousness or inability to swallow. C) At the onset of signs of diabetic ketoacidosis: This is not appropriate. Glucagon does not treat diabetic ketoacidosis (DKA); insulin and fluids are required to manage DKA. D) When unable to eat during sick days: While it's important for individuals with diabetes to manage their blood glucose during illness, glucagon should specifically be reserved for severe hypoglycemic episodes, not just when unable to eat. If a person is ill and cannot eat, they should monitor their blood glucose and manage it according to their treatment plan.