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

Exercise 1

A 44-year-old man diagnosed with acute tubular necrosis has a blood urea nitrogen of 60 mg/dL and a blood glucose level of 100 mg/dL. A 2+ urine glucose is also reported.

a. State the renal threshold for glucose.

b. What is the significance of the positive urine glucose and normal blood glucose?

Step 1 of 2

a.

Renal threshold levels for glucose:

The blood level up to which the glucose can be reabsorbed to the maximum in tubules is called renal threshold level of glucose.

• Renal threshold level for glucose is 160 to 180 mg/dL (milligrams per deciliter)