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Updated: Aug 12, 2026

06:59
Characterization of Metabolic Status in Nonhuman Primates with the Intravenous Glucose Tolerance Test
Published on: November 13, 2016
Summary
Previous reports suggested methyldopa causes false positives in urine glucose tests using the copper reduction method. Our study found methyldopa does not interfere with this urine glucose determination method.
Area of Science:
- Clinical Chemistry
- Pharmacology
Background:
- Methyldopa is a medication used to treat hypertension.
- Previous reports indicated potential interference of methyldopa with urine glucose testing methods.
Purpose of the Study:
- To investigate the effect of methyldopa on urine glucose tests.
- To compare the commonly used glucose oxidase methods with the copper reduction method (Clinitest) in the presence of methyldopa.
Main Methods:
- The study involved 30 patients.
- Urine glucose levels were tested using both glucose oxidase methods and the Clinitest (copper reduction method).
- The impact of methyldopa on the results of these tests was analyzed.
Main Results:
- The results indicated that methyldopa did not cause false-positive results in urine glucose tests.
- No interference was observed between methyldopa and the copper reduction method (Clinitest).
Conclusions:
- Methyldopa does not interfere with the copper reduction method for urine glucose determination.
- This finding clarifies a potential discrepancy in urine glucose testing for patients taking methyldopa.
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