reagent strips and urine used in urine analysis for the analysis of white blood cells, urobilinogen, bilirubin, blood

analysis bilirubin blood bodies bottle cells check checkup chemical clinic collection control density diagnosis disease doping drug exam examination glucose health healthy infection ketose ketosis laboratory leukocytes medical medicine nitrite parameter ph protein reagent research sample strips test testing toxicology tract treatment urinalysis urinary urine urobilinogen used vertical vial white