Test	Finding	Sensitivity (%)*	Specificity (%)*
Urinalysis16,17	> 5 WBCs/HPF	72 to 95	48 to 82
	> 10 WBCs/HPF	58 to 82	65 to 86
Leukocyte esterase test3	Positive	74 to 96	94 to 98
Nitrite test18	Positive	35 to 85	92 to 100
Leukocyte esterase and nitrite tests15,19	Either test positive	75 to 84	82 to 98
Dipstick hematuria20	Positive	44	88
Gram stain of uncentrifuged urine21	> 1 bacterium per HPF	93	95