The article was professionally consulted by a Doctor from the Department of Urology, Vinmec Central Park International Hospital.
Urine test results should only be interpreted and analyzed by doctors to ensure accurate assessments of health conditions. If experiencing any abnormal symptoms, patients should visit medical facilities for timely diagnosis and treatment.
1. What is the ASC index in a urine test?
Ascorbic acid is an antioxidant that can cause deviations in urine test results using test strips. The normal concentration of ascorbic acid in urine, as determined by test strips, is negative (0 mmol/L).
The result will indicate positive or negative depending on the ascorbic acid concentration in the urine. For example, a level of 20 mg/dL corresponds to a positive result. Ascorbic acid is a water-soluble vitamin essential for the body to form collagen in bones, cartilage, muscles, and blood vessels, and it helps in iron absorption and boosting immunity against infections. Vitamin C is abundant in fresh fruits like oranges, lemons, tangerines, grapefruits, and leafy green vegetables, especially broccoli, potatoes, cabbage, tomatoes, and many other types of produce.
High levels of ascorbic acid in urine can result from consuming foods rich in vitamin C, which, after metabolism, is excreted in urine. Therefore, there is no need for excessive concern about this issue.
Normal values range from 5-10 mg/dL or 0.28-0.56 mmol/L.
2. What Does the ASC Index in a Urine Test Indicate?
The ASC index in urine tests can indicate markers for detecting cells and treating conditions such as kidney inflammation, urinary tract infections, or urinary stones...
Evaluating ascorbic acid levels in urine can help reduce the risk of errors in diagnosing certain diseases. High concentrations of ascorbic acid in urine can cause false negatives for certain substances (glucose, nitrites, and bilirubin), or for cells (red blood cells and white blood cells) when using test strips.
3. Notes when conducting urine tests
When collecting urine samples for testing, patients need to note the following:
● Wash your hands thoroughly with antibacterial soap, then clean the genital area using a sterile towel.
● Collect urine in the designated container as required, ensuring the correct ratio. Avoid touching the urine sample with your hands.
● Avoid taking any medications, including vitamin supplements and functional foods, before providing a urine sample, as their components may affect the test results.
Vinmec International Hospital ensures high-quality expertise with a team of doctors, advanced technological equipment, and comprehensive, professional services. The hospital provides a modern, safe, and sterile environment for examinations and treatments. Customers can trust the accuracy of test results conducted here.
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