Which of the following is a sign of hypoglycemia?

• A. Sweating trembling
• B. Rapid pulse
• C. No acetone breath
• D. Slow loss of consciousness

Answer: (A)

When blood glucose falls, the body activates the sympathetic nervous system to raise it, leading to classic early signs like sweating and trembling. These symptoms appear quickly and together, making them strong indicators that someone is hypoglycemic. Sweating is a hallmark autonomic response, and trembling reflects the nervous system’s response to insufficient glucose for muscle and nerve function. That combination is more directly and reliably associated with hypoglycemia than other options.

Rapid pulse can occur with hypoglycemia, but it’s not as specific to low blood sugar and can be seen in many other situations. No acetone breath points more toward ketosis, such as in diabetic ketoacidosis, and isn’t a sign of hypoglycemia. A slow loss of consciousness describes a late progression; it’s not an early sign and isn’t as typical a presenting feature as sweating with trembling.