[Diagnosis of leucocytes in urine by means of a test-strip (author's transl)].

A test-strip for diagnosing urinary leucocytes (Cytur) was evaluated by 11 centres, on a total of 1985 voided urine specimens. Results were compared with chamber counting of uncentrifuged urine, as well as by microscopic examination of spun sediment. With a reaction time of 15 minutes the test-strip compared well with the other two methods. When urine is allowed to stand, the lysis of leucocytes exaggerates the colour reaction of the test-strip. Red blood cells, bacteria, sperm and nitrite in urine do not influence the results, except Trichomonas which increases the reaction. Ascorbic acid and albumin slightly inhibit the reaction.