Which test provides information on carbohydrate metabolism by measuring reducing substances?

The test that provides information on carbohydrate metabolism by measuring reducing substances is the Clinitest. This qualitative test is primarily used for the detection of reducing sugars in urine, such as glucose. It is based on the ability of reducing sugars to reduce copper sulfate to cuprous oxide during a heating reaction, resulting in a color change.

The significance of this test is that it can help identify conditions such as diabetes mellitus or other disorders of carbohydrate metabolism, where there may be an abnormal presence of reducing sugars in the urine. Clinicians often rely on Clinitest results to evaluate and monitor patients’ metabolic status, especially when glucose levels need to be assessed.

In the context of other tests, the Acetest is primarily used to detect ketone bodies, the Ictotest is designed to determine bilirubin levels in urine, and the sulfosalicylic acid test is utilized to detect proteins in urine. Therefore, these tests do not measure reducing substances related to carbohydrate metabolism, making Clinitest the correct and relevant choice for understanding carbohydrate metabolism through reducing substances.