The Appearance of Abnormal Metabolites in the Urine Due to a Defect

Multiple Choice

The appearance of abnormal metabolites in the urine due to a defect categorized as an "overflow type" may be caused by all of the following except:

A) Inborn errors of metabolism
B) Serum concentrations exceeding the Tm
C) Abnormalities in the tubular reabsorption mechanism
D) Disruption of normal enzyme function by exposure to toxic substances