Glucagon-answer: b - administration of the hormone glucagon to reverse the effects of insulin, or glucose given intravenously.- note - short acting or regular insulin usually reaches the blood within 30 minutes after injection, peaks in 2 to 4 hours and stays in the bloodstream for 6 to 8 hours. because of its short and predictable peak action, regular insulin is the insulin product routinely used for intravenous administration. in hypoglycemic diabetic coma however, administration of the hormone glucagon to reverse the effects of insulin, or glucose given intravenously would be more likely the order.globulin insulin is not for diabetic coma