2. Symptoms and Signs

Classic symptoms of low blood sugar are sweating, a pale complexion, a fast heartbeat, and a tremor. Dizziness, blurred or double vision, confusion, and aggression may follow as the blood sugar falls further. If left untreated, seizures and coma may result. These symptoms and signs may occur when the blood sugar drops below 72 milligrams per decliter (72mg/dL).

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