SACE Stage 1 Nutrition Practice Exam 2025 - Free Nutrition Exam Questions and Study Guide

Hypoglycemia, characterized by abnormally low blood glucose levels, can lead to a range of symptoms as the body responds to the lack of glucose, which is a primary energy source. Shakiness is a common symptom associated with hypoglycemia because when the blood sugar falls, the body releases adrenaline (epinephrine) in an effort to raise blood sugar levels. This release can trigger physical responses such as trembling or shakiness as part of the fight-or-flight response.

In contrast, while tiredness may happen when blood sugar is low due to insufficient energy available for bodily functions, it is not as immediate or definitive a symptom as shakiness. Frequent urination is typically related to high blood sugar (hyperglycemia) or conditions like diabetes, rather than low blood sugar. Blurred vision can occur with significant fluctuations in blood sugar levels but is more commonly associated with prolonged hyperglycemia. Thus, shakiness is the most direct symptom linked to the rapid physiological response of hypoglycemia.