Lenke R R, Van Dorsten J P
Am J Obstet Gynecol. 1981 Jun 15;140(4):427-9. doi: 10.1016/0002-9378(81)90039-9.
The efficacy of the nitrite dipstick and microscopic urinalysis in predicting culture results were evaluated for 146 urine cultures from 56 women at risk for recurrent pyelonephritis. There were 111 negative cultures, 18 positive cultures, and 17 contaminated cultures. Nitrites were not detectable in either negative or contaminated cultures. Bacilluria was present in 10% of negative cultures and in 18% of contaminated cultures. Pyuria was present in 14% of negative and in 24% of contaminated cultures. Among the 18 positive cultures, nitrite was present in only 22%, bacilluria in only 61%, and pyuria in only 67%. These results suggest that positive cultures cannot be accurately predicted by either microscopic urinalysis or the nitrite dipstick, and that routine culturing should be performed as part of the outpatient management of women at risk for recurrent pyelonephritis.
对56名有复发性肾盂肾炎风险的女性的146份尿培养样本，评估了亚硝酸盐试纸法和显微镜下尿液分析预测培养结果的效能。其中有111份培养结果为阴性，18份为阳性，17份为污染样本。阴性和污染样本中均未检测到亚硝酸盐。10%的阴性样本和18%的污染样本中存在杆菌尿。14%的阴性样本和24%的污染样本中存在脓尿。在18份阳性培养样本中，仅22%存在亚硝酸盐，仅61%存在杆菌尿，仅67%存在脓尿。这些结果表明，显微镜下尿液分析或亚硝酸盐试纸法均无法准确预测阳性培养结果，对于有复发性肾盂肾炎风险的女性，常规培养应作为门诊管理的一部分进行。
