尿路感染症に関する研究—第2報中間尿法における混入汚染細菌の検討

STUDY ON THE URINARY TRACT INFECTION:AN EVALUATION OF MIDSTREAM URINE CULTURES WITH REFERENCES OF CONTAMINATION

緒言

　尿の細菌学的検査において，採尿法はKassの中間尿法が広く用いられているが，汚染のない検体を得ることは尿路感染症の診断および治療，特に長期間にわたる治療の必要な症例には欠くべからざるものである。今回中間尿法とカテーテル採尿法とを同一症例に用いて比較し，あわせて中間尿における細菌数と白血球数の関係についても比較したのでこの結果を報告する。

The incidence of bacterial contamination of urine collected by midstream, was more than 90% in female and approximately 50% among male.

False positive was 7% among the female by midstream.

The contaminated bacteria, by midstream, was enterococcus among the female and Staph. epidermidis among the male, but candida and Gram negative rodds, such as E. coli and proteus, were isolated.

The possibility of bacteriuria can not be excluded, inspite that the leucocyte count by microscopic examination of urinary sediment was within normal limits, for the diagnosis of urinary tract infection.