Which is a common sign or symptom of high blood glucose?

• A. Syncope
• B. Profuse sweating
• C. Sluggish feeling
• D. Nausea/vomiting

Answer: (C)

When blood glucose is high, your body's tissues aren’t getting energy efficiently from glucose, which leaves you feeling tired and slow to respond. This fatigue, or a sluggish feeling, is a common symptom because cells are technically energy-starved and the body is working harder to process the excess glucose. Dehydration from frequent urination often accompanies hyperglycemia, further contributing to sluggishness.

Fainting tends to happen with very low blood glucose or other acute issues, not just high glucose. Profuse sweating is more associated with hypoglycemia or heat/stress, not the typical picture of elevated glucose. Nausea and vomiting can occur in severe hyperglycemia (like diabetic ketoacidosis), but they’re not as common as fatigue for everyday high blood sugar.