North Dakota Department of Health

few bacteria or if the infection is gram-positive. The leukocyte esterase-nitrate test (a combination test) is more . accurate than either, with about a 70% sensitivity in a patient . with clinically suspected UTI. A Gram's stain of 1 drop (dried) of unspun urine showing >1 organism/HPF has an 80% correlation with >105 CFU/ml . on culture. ................
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