细菌性脑膜炎的快速诊断颇为重要。脑脊液常规检查总是不能及时提供明确的诊断依据。革兰氏染色会出现阴性(或因细菌少而难以判断);糖和蛋白量的测定及白细胞计数有时不够可靠;细菌培养要在18～24小时后才能获得结果。因此,需要另外一些脑脊液检查以辅助诊断,下列几种试验已被证明是行之有效的检查方法。乳酸含量的测定:正常脑脊液中乳酸的 Rapid diagnosis of bacterial meningitis is quite important. Cerebrospinal fluid routine examination can not always provide a clear diagnosis in time. Gram stain will appear negative (or due to bacterial and difficult to judge); determination of the amount of sugar and protein and white blood cell count is sometimes not reliable; bacterial culture in 18 to 24 hours to get results. As a result, additional cerebrospinal fluid tests are needed to assist in the diagnosis. The following tests have proven to be effective tests. Determination of lactic acid content: lactic acid in normal cerebrospinal fluid