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Analytical interferences of drugs in the chemical examination of urinary protein
Adriana Scotti da Silva-Colombeli1, Miriam Falkenberg
1Laboratório de Análises Clínicas, Hospital Universitário, Universidade Federal de Santa Catarina, Campus Universitário Trindade, 88.040-970 Florianópolis, Santa Catarina, Brazil.
Objectives:
To evaluate the potential analytical interference of 24 drugs in the urinary protein.
Design And Methods:
The analysis was done using Multistix 10SG and comparing the results of controls with urine samples supplemented with drugs.
Results:
Positive interferences occurred with ciprofloxacin, quinine and chloroquine in supratherapeutical concentrations, while chloroquine interfered also in therapeutical concentration.
Conclusions:
False proteinuria in test-strips can lead to erroneous interpretations with repercussion in clinical procedures and higher costs to the health system.
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