3yr old male lethargic, unresponsive. Blood sugar 43, after eating peanut butter and jelly sandwich, apple juice blood sugar up yo 208. Sugar in urine?

Evaluate at hospital. A 3 year old who is truly lethargic and unresponsive should be evaluated at a hospital (such as a children's hospital), arriving there by ambulance. Doctors there will do various tests to see whether or not blood sugar levels are the cause of the symptoms.