What are the signs and treatment of hypoglycemia?

Hypoglycemia occurs when blood glucose falls below 70 milligrams per deciliter and presents with two categories of symptoms. Adrenergic symptoms from the sympathetic nervous system response include sweating, tremor, tachycardia, hunger, and anxiety. Neuroglycopenic symptoms from inadequate brain glucose include confusion, dizziness, difficulty speaking, seizures, and loss of consciousness. Conscious patients should consume 15 grams of fast-acting carbohydrates such as glucose tablets or fruit juice, wait 15 minutes, and recheck glucose, known as the "rule of 15.