Hypoglycemia is the most common acute complication associated with diabetes. In children, symptoms may include irritability, asthenia, anxiety, hunger, headache, sweating, pallor, tachycardia, ataxia, and coma. It is necessary to maintain respiration and perform some laboratory tests, such as blood glucose, azotemia, electrolytes, creatininemia, transaminases, arterial pH, insulinemia, ketonemia, lactacidemia, ECG, phosphatemia, and urinary glucose.
As for treatment, glucose is usually administered. As an alternative to this, glucagon or diazoside can be administered in cases of severe hyperinsulinemia.
Source: Mediserve‘s Medical Emergencies in Pediatrics.