We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Accuracy and influence of ascorbic acid on glucose-test with urine dip sticks in prenatal care.
- Authors
Claudia Ritterath; Tina Siegmund; Neda Talai Rad; Ursula Stein; Kai J. Buhling
- Abstract
Objective: In Germany, urine analysis with dip sticks are used for screening of gestational diabetes. Our goal was to find the cut-off levels of glucose dip sticks and evaluate the influence of ascorbic acid on the result.Study design: We took urine samples of 152 pregnant patients between 01/2004 and 10/2004. The glucose content of the urine was analyzed using several dip sticks (Combur10® Roche®, Multistix® 8SG Bayer®, Diabur5000® Roche®) and by the hexokinase method. The ascorbic acid concentration of the specimen was determined.Results: Glycosuria test dip sticks have a good sensitivity and specificity of the expected positive/negative-reaction compared with the hexokinase method but showed a significant reduction of the color reaction at high concentrations of ascorbic acid.Conclusion: High ascorbic acid concentrations cause a reduction in the color reaction of urine dip sticks. False-negative test stick measurements can appear in patients with low glycosuria. The rate of glycosuria shows high individual differences and dependent on the concentration of vitamin C. We conclude that dip sticks are not useful in prenatal management.
- Publication
Journal of Perinatal Medicine, 2006, Vol 34, Issue 4, p285
- ISSN
0300-5577
- Publication type
Academic Journal
- DOI
10.1515/JPM.2006.054