IHS Unit 4: Table 18-4 Abnormal Constituents in Urine
*If glucose levels are normal, filtrate levels are normal *Untreated diabetic; BG too high; therefore filtrate glucose too high. The kidneys reabsorb glucose up to threshold level, but the excess remains in filtrate & excreted in urine
*Presence of protein in urine indicates the glomeruli have become too permeable, as occurs in some types of kidney disease.
*Presence of RBCs in urine may indicate glomeruli have become too permeable. *Another cause might be bleeding somewhere in urinary tract.
*Bacteria give urine cloudy color; WBCs may also be present *Presence of bacteria means there is an infection somewhere in urinary tract
*Ketones formed from fats & proteins used for energy production. Higher levels of ketones indicate increased use of fats & proteins for energy. This may be result of malfunctioning carbohydrate metabolism (as in DM) or simply the result of high-protein diet.