Which of the following is NOT a symptom of hypoglycemia?

The correct choice highlights that increased appetite is not a symptom of hypoglycemia, while the other options accurately represent common responses to low blood sugar levels.

Hypoglycemia typically triggers a physiological response to restore normal glucose levels in the bloodstream. Symptoms such as hunger arise because the body signals the need for food intake to replenish glucose. Similarly, irritability is often displayed due to the body’s stress response to insufficient glucose for brain functioning, which can alter mood and behavior. Cold extremities can occur as a response to the body's priority to fuel vital organs over peripheral areas when glucose levels are low.

Increased appetite may seem like a potential symptom; however, it typically refers to a condition characterized by a persistent desire to eat, which is more often associated with states of hypoglycemia or diabetes management rather than being an explicit symptom of hypoglycemia itself. Rather than feeling an increased appetite during a hypoglycemic episode, the individual usually experiences acute hunger pangs driven by the immediate need for glucose.