Which of the following is a symptom of hypoglycemia?

Mild shakiness is a classic symptom of hypoglycemia, which occurs when blood sugar levels drop below normal. When the body does not have enough glucose, it impacts the brain and nervous system, leading to feelings of jitteriness or shakiness. Individuals may experience this as their body responds to the low sugar levels, trying to alert them that something is wrong. Other common symptoms of hypoglycemia include sweating, anxiety, hunger, confusion, and in severe cases, loss of consciousness.

The other options listed relate to different conditions that do not align with hypoglycemia. Frequent urination, for example, is typically associated with elevated blood sugar levels, such as in diabetes, and the fruity odor to breath is a sign of ketoacidosis, commonly seen in uncontrolled diabetes. Increased thirst can also be associated with hyperglycemia due to dehydration from excess urination. Therefore, mild shakiness stands out as the direct indicator of low blood sugar levels.