Which symptom is most specific for hypoglycemia in a patient receiving insulin therapy?

Which symptom is most specific for hypoglycemia in a patient receiving insulin therapy?

• A. Tremor
• B. Polyphagia
• C. Flushed skin
• D. Diaphoresis

Answer: (D)

Diaphoresis, or sweating, is the symptom most specific for hypoglycemia in someone on insulin. When glucose is low, the body mounts a counterregulatory, autonomic response that includes the release of catecholamines, leading to symptoms like trembling, anxiety, and sweating. Sweating is a highly recognizable and relatively specific sign of this adrenergic activation. Tremor is common but can occur with anxiety or other causes and isn’t as specific to hypoglycemia. Polyphagia can occur but isn’t a reliable or specific warning sign in this context, and flushed skin isn’t a typical hallmark of low blood sugar. So sweating stands out as the best indicator of hypoglycemia in this setting.

Diaphoresis, or sweating, is the symptom most specific for hypoglycemia in someone on insulin. When glucose is low, the body mounts a counterregulatory, autonomic response that includes the release of catecholamines, leading to symptoms like trembling, anxiety, and sweating. Sweating is a highly recognizable and relatively specific sign of this adrenergic activation. Tremor is common but can occur with anxiety or other causes and isn’t as specific to hypoglycemia. Polyphagia can occur but isn’t a reliable or specific warning sign in this context, and flushed skin isn’t a typical hallmark of low blood sugar. So sweating stands out as the best indicator of hypoglycemia in this setting.