An Osmotic Diuresis is Most Commonly Caused By

Question

An osmotic diuresis is most commonly caused by
A) ketonuria.
B) albuminuria.
C) glucosuria.
D) hypoglycemia.

Accepted Answer

An osmotic diuresis occurs when there is an abnormal concentration of solutes in the urine, causing an increase in urine output. Glucosuria, or the presence of glucose in the urine, is the most common cause of osmotic diuresis. This occurs in individuals with uncontrolled diabetes mellitus, where high levels of glucose in the blood exceed the renal threshold for glucose reabsorption, leading to excretion of glucose in the urine. Ketonuria (A) is the presence of ketone bodies in the urine, which can occur in individuals with uncontrolled diabetes and can contribute to an osmotic diuresis, but it is not the most common cause. Albuminuria (B) is the presence of protein in the urine and can occur in various conditions, including kidney disease, but it does not cause osmotic diuresis. Hypoglycemia (D) is low blood sugar and would not cause osmotic diuresis.