| HHNC | hyperosmolar nonketotic diabetic coma |
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| HHNK | hyperglycemic hyperosmoler nonketotic [coma] |
| HHNS | hyperosmolar hyperglycemic nonketotic syndrome |
| HNC | hypernephroma cell; hyperosmolar nonketotic coma; hypothalamoneurohypophyseal complex |
| HNKC | hyperosmolar nonketotic coma |
| HG | hyperglycaemia |
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| nonketotic hyperglycaemia | A complication seen in diabetes mellitus in which very marked hyperglycaemia occurs (such as levels over 800 mg/dL) causing osmotic shifts in water in brain cells and resulting in coma. It can be fatal or lead to permanent neurologic damage. Ketoacidosis does not occur in these cases. Synonym: nonketotic hyperglycaemia. (05 Mar 2000) |
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| posthypoglycaemic hyperglycaemia | A rebound phenomenon of reactive hyperglycaemia following a period of relative hypoglycaemia, which may be subclinical and difficult to detect; the hyperglycaemia induces use of more insulin, thus aggravating the problem. Synonym: posthypoglycaemic hyperglycaemia. (05 Mar 2000) |
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| hyperglycaemia | <biochemistry> Too high a level of glucose (sugar) in the blood, a sign that diabetes is out of control. It occurs when the body does not have enough insulin or cannot use the insulin it does have to turn glucose into energy. Hyperglycaemia may be seen in diabetes mellitus, Cushing's disease and Cushing's syndrome. Signs of hyperglycaemia are a great thirst, a dry mouth, and a need to urinate often. For people with insulin-dependent diabetes, hyperglycaemia may lead to diabetic ketoacidosis. Origin: Gr. Glykys = sweet, haima = blood (09 Oct 1997) |
| hyperglycaemic hyperosmolar nonketotic coma | A syndrome consisting of extreme hyperglycaemia, serum hyperosmolarity and dehydration in the absence of ketosis and acidosis. (12 Dec 1998) |
| hyperosmolar nonketotic coma | A complication seen in diabetes mellitus in which very marked hyperglycaemia occurs (such as levels over 800 mg/dL) causing osmotic shifts in water in brain cells and resulting in coma. It can be fatal or lead to permanent neurologic damage. Ketoacidosis does not occur in these cases. Synonym: nonketotic hyperglycaemia. (05 Mar 2000) |
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