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Manifestations of hyperinsulinemic hypoglycemia vary by age and severity of the hypoglycemia. In general, most signs and symptoms can be attributed to (1) the effects on the brain of insufficient glucose (neuroglycopenia) or (2) to the adrenergic response of the autonomic nervous system to hypoglycemia.
Insulin resistance, or low insulin sensitivity, happens when cells throughout the body don’t respond properly to the hormone insulin, especially cells in muscles, fat and the liver.
Upon recognizing the signs and symptoms of hypoglycemia in a diabetic, a blood sugar level should first be measured using a glucose meter. [1] If blood glucose is below 70 mg/dL (3.9 mmol/L), treatment will depend on whether the person is conscious and can swallow safely.
Symptoms of diabetic hypoglycemia, when they occur, are those of hypoglycemia: neuroglycopenic, adrenergic (that is, activating adrenergic receptors, resulting e.g. in fast heartbeat), and abdominal. Symptoms and effects can be mild, moderate or severe, depending on how low the glucose falls and a variety of other factors.
Insulin shock A severe condition that occurs when the level of blood glucose (sugar) drops too far and quickly. The signs are shaking, sweating, dizziness, double vision, convulsions, and collapse. Insulin shock may occur when an insulin reaction is not treated quickly enough. In severe cases, brain damage, nerve damage, or even death is possible.
Those with transient neonatal diabetes tend to have symptoms in the first few days or weeks of life, with affected children showing weight loss and signs of dehydration, along with high levels of sugar in the blood and urine. Some children also have high levels of ketones in the blood and urine, or signs of metabolic acidosis. [5]
Symptoms vary according to individuals' hydration level and sensitivity to the rate and/or magnitude of decline of their blood glucose concentration. [citation needed] A crash is usually felt within four hours of heavy carbohydrate consumption. Along with the symptoms of hypoglycemia, symptoms of reactive hypoglycemia include: [7] [8] [9]
Hyperinsulinism refers to an above normal level of insulin in the blood of a person or animal. Normal insulin secretion and blood levels are closely related to the level of glucose in the blood, so that a given level of insulin can be normal for one blood glucose level but low or high for another.