Cytochrome staining of leukocytes in urine sediment. Assessment of inflammatory state.

Urinary sediments with significant pyuria were supravitally stained to assess the inflammatory state. Clinic patients showed a significant correlation between acute urinary infection, inflammation, and the predominance of live polymorphonuclear leukocytes. Post-transurethral prostatic resection patients demonstrated to show a predominance of live polymorphonuclear leukocytes, which may be clinically usefull in a more careful selection before relying fully on bacteriologic cultures.