Urinalysis and Body Fluids 6th Edition by Majorie DiLorenzo, Susan Strasinger

Exercise 51

A patient with a normal blood glucose and a positive urine glucose should be further checked for:

A. Diabetes mellitus

B. Renal disease

C. Gestational diabetes

D. Pancreatitis

Step 1 of 2

Glucose:

• Urine contain only least amount of glucose, they are reabsorbed in proximal convoluted tubule after filtered by glomerulus of nephron.

• When glucose reaches its renal threshold level it appears in urine.

Renal glycosuria:

• It is a condition when sugar (glucose) is excreted in urine.

• Due to inadequate functioning of renal tubules, glucose level is elevated in urine.

• In renal glycosuria the blood glucose level is normal and urine glucose level is elevated in condition (positive urine glucose).

Therefore, “renal disease” is checked in patient with normal blood glucose and positive urine glucose. Hence, the correct answer is option.