What symptom is least likely to be associated with hyperglycemia or hypoglycemia?

Bradycardia, which is a slower than normal heart rate, is indeed the symptom least likely to be associated with hyperglycemia or hypoglycemia. In both conditions, the body's physiological response typically includes the activation of the sympathetic nervous system, which leads to an increase in heart rate, known as tachycardia.

In hyperglycemia, the raised blood sugar levels can lead to symptoms such as confusion due to altered mental status and agitation as individuals might feel unwell or anxious. Similarly, hypoglycemia often presents with symptoms like confusion, agitation, and tachycardia as the body reacts to low blood sugar levels. However, bradycardia is generally not linked to either condition; rather, it can indicate a different physiological response or underlying issue. Thus, among the listed options, bradycardia stands out as the least expected symptom in the context of hyperglycemia or hypoglycemia.