VDRL和TRUST在梅毒实验室诊断中的应用比较

目的探讨性病实验室试验(VDRL)和甲苯胺红血清不加热试验(TRUST)试验在梅毒实验室诊断中的应用。方法采用VDRL和TRUST试验同时对梅毒患者和健康对照者的血清、血浆和脑脊液(CSF)进行检测。结果 TRUST和VDRL用于血清和CSF标本检测时,VDRL检测结果较TRUST普遍偏高1~2个滴度;用于血浆标本检测时,VDRL检测结果较TRUST普遍偏低1~2个滴度。VDRL在检测健康对照血清和血浆标本时均出现不同程度的假阳性,而在检测正常对照的CSF时,TRUST和VDRL结果一致。结论 TRUST更适用于血清和血浆标本检测,VDRL适用于CSF标本检测,但不适合血清和血浆检测。

Application comparison of VDRL and TRUST in syphilis laboratory diagnosis

Objective To investigate the application of venereal disease research laboratory(VDRL) test and toluidine red unheated serum test(TRUST) in syphilis laboratory diagnosis.Methods Serum,plasma and cerebrospinal fluid (CSF) in syphilis patients and healthy controls were measured by VDRL and TRUST.Results The VDRL detection results in serum and CSF sepcimens were generally higher than the TRUST detection results by 1-2 titers,while in plasma specimen,the VDRL detection results were generally lower than the TRUST detection results by 1-2 titers than TRUST when using plasma specimen.In addition,the VDRL detection in normal control serum and plasma specimens all appeared different degrees of false positive,but in the detection of normal control CSF,the results of TRUST and VDRL were consistent.Conclusion TRUST is more suitable for serum and plasma specimens,and CSF is suitable for the CSF specimen,but not suitable for serum and plasma detection.