Neutrophils in urine extrude their DNA to create large webs that catch and kill pathogens.

Urinalysis: This is the chemical and microscopic examination of a urine sample to check for the presence of white blood cells (WBCs). Without WBCs in urine, a UTI is unlikely. Urine culture ...

Catheter urine specimens (CSUs ... to decrease specimen contamination and increase detection of UTI by urinalysis and routine microscopy. In a study of 607 nonpregnant women, culture-proven ...