Shrestha T L, Darrell J H
J Clin Pathol. 1979 Mar;32(3):299-302. doi: 10.1136/jcp.32.3.299.
In the eight-month period of study of all urine samples processed in our routine laboratory, only 85 out of 12 152 specimens yielded a bacteriologically significant growth of either Staphylococcus epidermidis or micrococci. Their growth on MacConkey medium was strictly comparable to that on cysteine lactose electrolyte-deficient (CLED) media. Most micrococci isolated were from urine samples of non hospitalised women patients, were resistant to a novobiocin (5 micrograms) disc, and belonged to Baird Parker type 3. Staph. epidermidis came mainly from postoperative surgical in-patients. Their antibiotic sensitivity patterns are variable whereas micrococci are fully sensitive to all urinary antibiotics. We agree that the use of a novobiocin (5 micrograms) disc for provisional identification of micrococci and Staph. epidermidis is simple and practical for a busy routine diagnostic laboratory. The use of more extensive systems to biotype these organisms in a routine laboratory is not practical and not relevant to patient management.
在我们常规实验室对所有处理过的尿液样本进行的为期八个月的研究中，12152份标本中只有85份培养出了具有细菌学意义的表皮葡萄球菌或微球菌生长。它们在麦康凯培养基上的生长情况与在半胱氨酸乳糖电解质缺乏（CLED）培养基上的生长情况严格可比。分离出的大多数微球菌来自非住院女性患者的尿液样本，对新霉素（5微克）纸片耐药，属于贝尔德·帕克3型。表皮葡萄球菌主要来自术后住院患者。它们的抗生素敏感性模式各不相同，而微球菌对所有尿路抗生素均完全敏感。我们一致认为，对于繁忙的常规诊断实验室而言，使用新霉素（5微克）纸片对微球菌和表皮葡萄球菌进行初步鉴定既简单又实用。在常规实验室中使用更广泛的系统对这些微生物进行生物分型既不实用，也与患者管理无关。
