Significance of Dipstick Haematuria. 1. Correlation with Microscopy of the Urine

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Abstract
The reliability of a chemical test for haematuria has been evaluated in patients referred for investigation of suspected renal or urological disease. Red blood cells in concentrations of 10/.mu.l or greater were found in 24% of urines giving a negative dipstick result, 82% of urines giving a trace positive result and nearly 100% of urines giving dipstick results greater than this. The accuracy of the reagent strip in predicting the presence or absence of significant haematuria was improved by testing several urines from each patient. On the basis of this study, if significant haematuria is present, reagent strip urine testing is an efficient method for its detection.

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