Reducing Substances (Urine)

Specimen Required

Urine (Random/Spot)

Fasting Required

Purpose of the Test

The test for reducing substances in urine is usually done to detect the presence of certain sugars in the urine, such as glucose or fructose, which can indicate a problem with the body’s ability to process these sugars. This test is typically ordered for individuals with suspected diabetes, especially if they have symptoms such as excessive thirst, frequent urination, and fatigue. It may also be ordered for infants with suspected galactosemia or other congenital disorders.

When this test is required

The test may be requested if a patient exhibits symptoms of a sugar metabolism disorder, such as frequent urination, excessive thirst, fatigue, weight loss, or slow healing of wounds. It may also be ordered as a routine screening test for individuals who have a family history of these conditions or who are at high risk due to their lifestyle or medical history.

What the Test Detects

Reducing substances in urine refer to the presence of certain chemicals that can reduce other compounds, indicating the presence of an abnormal metabolic or physiological condition in the body. The reducing substances commonly tested in urine include glucose, fructose, galactose, lactose, and pentose.

Preparation for the Test

There is typically no special preparation required for this test. However, the patient should inform their healthcare provider of any medications or supplements they are taking, as certain medications or substances can affect the test results. Additionally, the patient should avoid eating sugary or starchy foods before the test, as this can also affect the results.

Sample Requirements

A urine sample is required for this test, which can be collected in a clean container. The patient should make sure to follow the instructions provided by their healthcare provider for proper urine collection and handling.

Additional Notes

It is important to note that certain medications, supplements, and medical conditions can interfere with the test results. Therefore, patients should inform their healthcare provider of any medications or supplements they are taking, as well as any medical conditions they have, before undergoing the test.

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