| diabetic lipaemia | Development of lactescent plasma upon ingestion of dietary lipids; a rare manifestation of uncontrolled diabetes mellitus caused by defective metabolism of dietary lipids and abolished by the administration of insulin. (05 Mar 2000) |
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| diabetic myelopathy | <pathology> Degenerative changes in spinal cord tissue occurring as a complication of diabetes mellitus Origin: Gr. Pathos = disease (27 Sep 1997) |
| diabetic nephropathies | Includes renal arteriosclerosis, renal arteriolosclerosis, kimmelstiel-wilson syndrome (intercapillary glomerulosclerosis), acute and chronic pyelonephritis, and kidney papillary necrosis in individuals with diabetes mellitus. (12 Dec 1998) |
| diabetic nephropathy | <nephrology, pathology> Kidney disease and resultant kidney function impairment due to the long standing effects of diabetes on the microvasculature (glomerulus) of the kidney. Features include increased urine protein and declining kidney function. Severe diabetic nephropathy can lead to kidney failure and end-stage renal disease. Origin: Gr. Pathos = disease (27 Sep 1997) |
| diabetic neuropathy | <neurology, pathology> Long standing or poorly controlled diabetes can cause permanent peripheral and autonomic nerve dysfunction known as diabetic neuropathy. Origin: Gr. Pathos = disease (27 Sep 1997) |
| diabetic patient | Diabetes mellitus is a disorder that is caused by the insufficient production of the pancreatic hormone insulin. Without insulin cells are unable to absorb glucose, necessary for cellular metabolism and energy production. Patients may have type I diabetes (juvenile onset) or type II diabetes (adult onset). Individuals with either condition are considered to be diabetic. (27 Sep 1997) |
| diabetic polyneuropathy | A distal, symmetrical, generally sensorimotor polyneuropathy that is a frequent complication of diabetes mellitus. (05 Mar 2000) |
| diabetic puncture | A puncture at a point in the floor of the fourth ventricle of the brain which causes glycosuria. Synonym: Bernard's puncture. (05 Mar 2000) |
| diabetic retinitis | See: diabetic retinopathy. (05 Mar 2000) |
| diabetic retinopathy | <ophthalmology, pathology> A major cause of blindness in diabetics. Retinal disease results from adverse effects on the blood vessels which supply the retina. Swollen retinal vessels which leak fluid into the retina are commonly seen on physical examination of the eyes. Poorly controlled insulin dependent diabetes and/or hypertension are the major risk factors. Symptoms include decreased vision and colour perception. Origin: Gr. Pathos = disease (27 Sep 1997) |
| Abbe test plate | <equipment> A long, wedge-shaped coverslip about 0.20 mm thick at one end and 0.10 to 0.12 mm at the other end coated chemically with a silver film on which are ruled horizontal lines. at each variation in thickness of 0.01 mm there are vertical lines. By means of oblique illumination and by focusing on different portions of the plate, it is possible to determine the optimum coverslip thickness for any objective and also, for microscopes with drawtubes, the tube length for best objective performance. The approximate freedom from spherical and chromatic aberrations can also be estimated. Small isolated bits of silver near the edges of the lines form good objects for the star test (05 Aug 1998) |
| acetone test | A test for ketonuria; the suspected urine is shaken up with a few drops of sodium nitroprusside, and strong ammonia water is then gently poured over the mixture; if acetone is present, a magenta ring forms at the line of contact; tablets containing sodium nitroprusside and alkali are now more commonly used. (05 Mar 2000) |
| achievement test | A standardised test used to measure acquired learning, e.g., competence in a specific subject area such as reading or arithmetic, in contrast to an intelligence test which is a useful index of potential ability or learning. (05 Mar 2000) |
| acidified serum test | Lysis of the patient's red cells in acidified fresh serum, specific for paroxysmal nocturnal haemoglobinuria. Synonym: Ham's test. (05 Mar 2000) |
| acid loading test | <nephrology> This is a test used in the diagnosis of renal tubular acidosis. The patient takes ammonium chloride capsules for 3 days to acidify the blood (lower blood pH). A sample of the urine and the blood is then collected and the results are interpreted. (27 Sep 1997) |