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Clinical Chemistry 23: 2242-2246, 1977;
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Clinical Chemistry, Vol 23, 2242-2246, Copyright © 1977 by American Association for Clinical Chemistry

Semi-automated vs. visual reading of urinalysis dipsticks

JD Peele Jr, RH Gadsden and R Crews

Semi-automated reflectance readings of urinalysis dipsticks showed better precision than visual readings in the case of artificially prepared urine samples containing glucose, ketone, and protein. Actual pathological specimens containing glucose, protein, and nitrite also showed that instrumental readings were better than visual. Results of repeated visual readings spread over three different color blocks for certain concentrations of glucose, ketone, and protein, whereas repeated instrumental readings were never spread greater than two color blocks. Subjectivity can be reduced by semi-automated dipstick urinalysis.


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P. Froom, R. Etzion, and M. Barak
What Is an Abnormal Test Strip Urinary Erythrocyte Concentration?
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J. Penders, T. Fiers, and J. R. Delanghe
Quantitative Evaluation of Urinalysis Test Strips
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P. Froom, B. Bieganiec, Z. Ehrenrich, and M. Barak
Stability of Common Analytes in Urine Refrigerated for 24 h before Automated Analysis by Test Strips
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Copyright © 1977 by the American Association for Clinical Chemistry.