快速血浆反应素环状卡片试验(RPR)是80年代问世的非特异性梅毒血清学试验,所用抗原为标准的牛心肌脂抗原,该方法操作简便、迅速,适用于大量标本检测,目前许多血站用RPR试验对献血者进行梅毒普查。RPR试验和DF方法对一期梅毒的诊断相互配合,可早期诊断梅毒。缺点是当抗体含量过高时,易出现假阴性反应,即前带现象(prozone p...
4. To exhibit a given characteristic when subjected to a test: test positive for the tubercle bacillus. [Middle English, cupel, from Old French, pot, from Latin testū, testum.] test′a·bil′i·ty n. test′a·ble adj. test 2 (tĕst) n. A hard external covering, as that of ce...
Darkfield microscopy: This test looks at a syphilis germ in a sample of fluid or tissue under a microscope. It is typically used in the early stages. Microhemagglutination assay (MHA-TP): This test is often done after another test gives a positive result....
Qualitative Method One drop (50 µl) of the test specimen, positive and negative controls is pipetted onto separate reaction circles of the card. Once spread smoothly, a drop of diluted antigen suspension is added to the measured volume of specimen, positive and negative controls. The antigen...
Reagin test usually turn non-reactive 6-18 months after effective therapy of syphilis depending on the stages of disease at which treatment is given. RPR test may be positive in low titre when treatment is started late. In late syphilis (cardiovascular, neurological or gummatous lensions) reagin...
In Reply.— In our previous study, using the first-generation (version) Abbott human T-lymphotropic virus type III (HTLV III) ELISA, 15 (24.2%) of 62 RPR-reactive serum samples tested falsely positive for HIV antibody. Drs Kvinesdal and Pedersen did not observe this association when using ...
ICD therapy represents a major advance in the treatment of patients with severely impaired left ventricular function after myocardial infarction. While an ... CW Israel - 《Herzschrittmachertherapie Und Elektrophysiologie》 被引量: 7发表: 2010年 Differential regulation of leucine-rich primary response...
After implementing the extra dilution step the correlation was moderate (r=0.61), increasing further to r=0.91 for samples with RPR-C titres鈮 128. Of the 92 samples that tested RPR-C positive and RPR-S negative, 8 were from M0 (RPR-C: 1鈥 4), which would have led to missed ...
How well the RPR (monitor) the test detects syphilis will depend on the stage of the infection. This test is more sensitive during the middle stages and is less sensitive during the early or late stages of the infection. Some other conditions can also lead to a false positive test like: ...
A treponemal test (reverse algorithm) cannot differentiate between active or previously treated infection, which can create a false-positive result. The immune response to syphilis creates antibodies to fight the infection; those antibodies remain in the blood after successful treatment, because treponemal...