Glucose is usually reabsorbed from the filtrate in the kidney back into the blood through carrier proteins; hence, glucose in the urine is considered abnormal.Which of these conditions can result in glucose in the urine
A)low levels of glucose in the blood
B)transport maximum for renal glucose reached or competitors for glucose carriers
C)low consumption of glucose
D)increased availability of glucose carriers

Question

Quizplus · Accepted Answer

Glucose in the urine can occur when the transport maximum for renal glucose has been reached, meaning that there is an excess of glucose in the filtrate that cannot be reabsorbed by carrier proteins. Alternatively, if there are competitors for the glucose carriers, such as in patients with untreated diabetes, glucose may also be present in the urine. Low levels of glucose in the blood (A) or low consumption of glucose (C) would not cause glucose to appear in the urine. Increased availability of glucose carriers (D) would actually facilitate reabsorption of glucose from the filtrate and reduce the amount of glucose found in the urine.

Glucose Is Usually Reabsorbed from the Filtrate in the Kidney