Urinalysis by means of Test Strips
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Test strip specificity

Test strip specificity is the characteristic of chemical reaction to react exclusively with the analyte whose concentration is to be determined. If no other substances interfere with the reaction, the chemical reaction is considered highly specific.
• Glucose
A highly specific test, because only glucose reacts with the glucose oxidase enzyme.
• Protein
The reaction is specific for albumins within pH range of 5-9. The test is less sensitive for other proteins (e.g. Bence-Jones protein, mucoproteins such as Tamm-Horsfall protein).
• Ketones
A highly specific reaction for acetoacetic acid and acetone.
• Urobilinogen
A highly specific reaction. No interferences from porphobilinogen, indican, or p-aminosulfosalicylic acid.
• Bilirubin
Specific reaction in a fresh urine specimen.
• Hemoglobin
Specific reaction for hemoglobin and myoglobin. Epithelial cells, leukocytes, and spermatozoids do not interefere with the reaction.
• Nitrites
The reaction depends exclusively on nitrites (pH 5-9).
• Leukocytes
The esterase from granulocytes and histiocytes is specific. Epithelial cells and spermatozoa do not interfere with the reaction.
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