| GCS | general clinical services; Gianotti-Crosti syndrome; Glasgow Coma Scale; glucocorticosteroid; glutam... |
|---|---|
| HHNC | hyperosmolar nonketotic diabetic coma |
| HHNK | hyperglycemic hyperosmoler nonketotic [coma] |
| HNC | hypernephroma cell; hyperosmolar nonketotic coma; hypothalamoneurohypophyseal complex |
| HNKC | hyperosmolar nonketotic coma |
| CA | Chromosome aberration |
|---|---|
| NA | nuclear aberration |
| TCA | transverse chromatic aberration |
| coma cast | A renal cast of strongly refracting granules said to be indicative of imminent coma in diabetes. Synonym: Kulz's cylinder. (05 Mar 2000) |
|---|---|
| coma scale | A clinical scale to assess impaired consciousness; assessment may include motor responsiveness, verbal performance, and eye opening, as in the Glasgow (Scotland) c.s., or the same three items and dysfunction of cranial nerves, as in the Maryland (U.S.) c.s. (05 Mar 2000) |
| coma vigil | Subacute or chronic state of altered consciousness, in which the patient appears alert intermittently, but is not responsive, although his/her descending motor pathways appear intact; due to lesions of various cerebral structures. Synonym: coma vigil. (05 Mar 2000) |
| curvature aberration | Lack of spatial correspondence causing the image of a straight extended object to appear curved. (05 Mar 2000) |
| hepatic coma | A condition of severe end-stage liver dysfunction that is accompanied by unresponsiveness (coma). A feature of hepatic encephalopathy. (27 Sep 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) |
| hypoglycaemic coma | A metabolic encephalopathy caused by hypoglycaemia; usually seen in diabetics, and due to exogenous insulin excess. (05 Mar 2000) |
| hypoventilation coma | Coma seen with advanced lung failure and resultant hypoventilation. Synonym: CO2 narcosis, hypoxic-hypercarbic encephalopathy, pulmonary encephalopathy. (05 Mar 2000) |
| spherical aberration | <microscopy> A lens defect in which image forming rays passing through the outer zones of the lens focus at a distance from the principal plane, different from that of the rays passing through the centre of the lens. The aberration caused by (near-paraxial) monochromatic light rays or electron beams passing through different radii of a lens not coming to the same focus. (05 Aug 1998) |
| newtonian aberration | When using white light through a lens system, it is inevitable that different wave lengths (colours) are brought to a focus at slightly different points. As a consequence, there are chromatic aberations in the image, good microscope objectives are therefore corrected for this at two wave lengths (achromats) or at three wave lengths (apochromats), as well as for spherical aberration. (18 Nov 1997) |
| delayed coma after hypoxia | Coma that develops a few days to 3 weeks after an acute hypoxic insult; the latter was usually severe enough to cause an initial bout of coma, which cleared, and was followed by a transient interval of apparent normality. Synonym: severe postanoxic encephalopathy. (05 Mar 2000) |
| diabetic coma | A severe metabolic derangement that occurs in the absence of insulin. Insulin allows the body to absorb glucose into cells for energy production. In the absence of insulin, the body starts to break down fats for fuel. A metabolic byproduct of fat metabolism is referred to as a ketone. The presence of elevated blood ketones in this setting is known as diabetic ketoacidosis. In extreme, untreated cases, this can lead to coma and death. (27 Sep 1997) |
| dioptric aberration | <microscopy> A lens defect in which image forming rays passing through the outer zones of the lens focus at a distance from the principal plane, different from that of the rays passing through the centre of the lens. The aberration caused by (near-paraxial) monochromatic light rays or electron beams passing through different radii of a lens not coming to the same focus. (05 Aug 1998) |
| distortion aberration | The faulty formation of an image arising because the magnification of the peripheral part of an object is different from that of the central part when viewed through a lens. (05 Mar 2000) |