Definition of absolute pressure. : total pressure at a point in a fluid equaling the sum of the gauge and the atmospheric pressures.
Sugars A high level of glucose and other sugars in the urine (glycosuria) is often a symptom of diabetes mellitus. Glycosuria can also be caused by advanced kidney disease, Cushing's syndrome, impaired tubular reabsorption, shock, a rare tumor of the adrenal gland (pheochromocytoma), or cancer of the pancreas.lycosuria Glycosuria or glucosuria is a condition of osmotic diuresis typical in those suffering from diabetes mellitus. It leads to excretion of glucose in the urine. Due to a lack of the hormone insulin, plasma glucose levels are above normal.
Sugar (glucose) is usually present in the urine at very low levels or not at all. Abnormally high amounts of sugar in the urine, known as glycosuria, are usually the result of high blood sugar levels. High blood sugar usually occurs in diabetes, especially when untreated. Normally, when blood is filtered in the kidneys, some sugar remains in the fluid that will later become urine.