Tags: Disease.
Hyperglycemia or high blood sugar (also spelled hyperglycaemia or hyperglycæmia not to be confused with hypoglycemia) is a condition in which an excessive amount of glucose circulates in the blood plasma. This is generally a glucose level higher than 11.1 mmol/l (200 mg/dl) but symptoms may not start to become noticeable until even higher values such as 15–20 mmol/l (~250–300 mg/dl).