What should be administered to a patient experiencing insulin overdose?

In the case of an insulin overdose, the primary concern is a significant drop in blood glucose levels, leading to hypoglycemia. Administering glucose is the most effective way to counteract this state. Glucose provides an immediate source of sugar that can quickly elevate blood glucose levels, alleviating the symptoms of hypoglycemia which can include confusion, dizziness, sweating, and even loss of consciousness if severe.

While starting an IV may be necessary, it is typically done to facilitate the administration of fluids or medications rather than to directly address hypoglycemia. Calcium does not play a role in correcting low blood sugar, and activated charcoal is not effective in this situation since it is mainly used for certain types of poisonings, and its use would not be indicated for an acute insulin overdose where immediate correction of blood glucose levels is required. Therefore, administering glucose is the most direct and appropriate response to effectively manage insulin overdose-related hypoglycemia.