Type 2 diabetes with hyperglycemia

High glucose may happen when insulin is insufficient, a medicine is missed, food or activity changes, or an infection or other illness places extra stress on the body. Thirst, frequent urination, tiredness, blurred vision, headache, and dry mouth can occur. Some people have few warning symptoms even when glucose is elevated. Repeated high readings can affect blood vessels, kidneys, eyes, nerves, and wound healing, so the pattern matters as much as a single result.

Check glucose as your clinician advised and write down readings, meals, medicines, activity, and symptoms. Take prescribed treatment; never take extra insulin or tablets unless your plan specifically explains how. Drink to thirst unless you have a fluid restriction, and follow your sick-day instructions during illness. Check your feet for injury and seek advice if readings remain high, especially when you are vomiting or cannot eat and drink normally.

Seek urgent help for repeated vomiting, severe dehydration, deep or rapid breathing, worsening drowsiness, confusion, or inability to keep fluids down. Contact your diabetes team promptly for persistent high readings, fever, suspected infection, or ketones if your care plan tells you to check them. Sudden weakness, facial drooping, trouble speaking, or new severe vision loss is an emergency.

What readings should prompt a call? How do I adjust treatment during illness? Should I check ketones, and what result needs urgent help? Could another medicine, infection, or kidney problem be raising my glucose?