Classic signs and symptoms of hypoglycemia include which of the following?

• A. Cool, clammy skin; weakness; tachycardia; and rapid respirations
• B. Warm, dry skin; tachycardia; fever; and confusion
• C. Hyperactivity; flushing; slow pulse; dry mouth
• D. Nasal discharge; coughing; blurry vision; dizziness

Answer: (A)

Low blood sugar triggers a fight‑or‑flight response that makes the body release adrenaline, leading to signs like cool, clammy skin, weakness, and a fast heart rate. The skin becomes cool and sweaty as blood is shunted to essential organs, while the heart rate rises to mobilize energy. Weakness arises because the brain and muscles aren’t getting the glucose they need to function. Rapid or shallow breathing can occur as part of the stress response to hypoglycemia. Together, these features—cool, clammy skin; weakness; tachycardia; and rapid respirations—fit the classic hypoglycemia picture.

The other options don’t align with low blood glucose. Warm, dry skin and fever point more toward dehydration, infection, or hyperglycemia rather than hypoglycemia. Signs like hyperactivity with a slow pulse don’t match the typical sympathetic response seen in low glucose, and nasal discharge or coughing are respiratory symptoms unrelated to hypoglycemia. In practice, recognizing the cool, clammy skin with weakness and tachycardia helps you identify a potential hypoglycemic emergency and act quickly to assess and treat.