<Tr> <Th> MeSH </Th> <Td> D006943 </Td> </Tr> <Tr> <Td_colspan="2"> (edit on Wikidata) </Td> </Tr> <P> Hyperglycemia, or high blood sugar (also spelled hyperglycaemia or hyperglycæmia) is a condition in which an excessive amount of glucose circulates in the blood plasma . This is generally a blood sugar 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). A subject with a consistent range between ~ 5.6 and ~ 7 mmol / l (100--126 mg / dl) (American Diabetes Association guidelines) is considered slightly hyperglycemic, while above 7 mmol / l (126 mg / dl) is generally held to have diabetes . For diabetics, glucose levels that are considered to be too hyperglycemic can vary from person to person, mainly due to the person's renal threshold of glucose and overall glucose tolerance . On average however, chronic levels above 10 - 12 mmol / L (180 - 216 mg / dL) can produce noticeable organ damage over time . </P> <P> The origin of the term is Greek: prefix ὑπέρ - hyper - "over -", γλυκός glycos "sweet wine, must", αἷμα haima "blood", - ία, - εια - ia suffix for abstract nouns of feminine gender . </P>

Excessive amount of sugar in the blood is called