Why is glucose absent in the urine of a healthy person?

Because the normal mechanisms for blood sugar control in body are intact and fully effecient to prevent leakage of glucose in urine . read more

In a healthy person, under normal physiological conditions, all the glucose filtered in glomerular filtrate is completely reabsorbed by the renal tubules and glucose is, therefore, found completely absent in urine. read more

Diabetes. This is a very high urine sugar and likely means that you are diabetic and have high blood sugars. Occasionally one can see families in which there is high urine sugar but normal blood sugars, but this is rare. read more

Glucose are completely reabsorbed in the first half of the proximal convulated tubule by several type of Na+ sympoters located in the apical membrane. Since glucose is the major components for body, it is reabsorbed and stored or used for ATP production. read more