A boy is suffering from acute pyelonephritis. Most specific urinary finnding will be:
Correct Answer: Nitrite test
Description: Sensitivity and Specificity of Urinanalysis in UTI: Tests Sensitivity (%) Specificity (%) Esterase 83 (67-94) 78(64-92) Nitrite 53(15-82) 98(90-100) Esterase or NItrite 93(90-100) 72(58-91) White blood cells 73(32-100) 81(45-98) Bacteria 81(16-99) 83(11-100) Any above 99.8 (99-100) 70(60-92) Ref: Smith 18th edition Pgno: 200
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