2.低滴度反应性(low-titer reactive):如果RPR结果为低滴度反应性,例如1:2或1:4,通常可能表明患者处于早期感染阶段或感染程度较轻。在这种情况下,建议进行更具体的梅毒抗体检测,如TPHA(Treponema Pallidum Hemagglutination Assay)。 3.高滴度反应性(high-titer reactive):如果RPR结果为高滴度反应性,例如1:8或更高...
nontreponemal and treponemal, will be negative. Treatment in the primary or secondary stage usually results in a rapid decline in the RPR antibody titer, frequently to non-reactive in 6-18 months. Treatment given in the tertiary stage
a quantitative titer test will then be performed to determine the actual concentration of antibodies in the blood sample. If the titer returns a ratio of 1:4 or higher, the CDC then recommends doing aT. Padillum testbecause both types of tests are needed to confirm an active syphilis infecti...
CSF showed lymphocytic pleocytosis (165 with 99% lymphs) with elevated protein of 78, reactive VDRL and FTAA with a VDRL titer 1:4. He was treated with IV penicillin and aspirin 81mg daily.Conclusions: Serum RPR may be an inadequate screening tool for stroke in the young, especially in ...
Quantitative Test (Titration) Titer Undiluted Reactive 1:4 1:2 Reactive 1:4 1:4 1:8 1:16 Reactive Nonreactive Nonreactive INTERPRETATION OF RESULTS Flocculation of RPR Antigen which appears as black clumps against the white background of the card indicates a Reactive (R) specimen. Slight but...
Flocculation is checked macroscopically under high intensity light source. Quantitative Method Dilute to an endpoint titer all serum specimens with rough nonreactive results in the qualitative test. Test each specimen undiluted (1:1), and in 1:2, 1:4, 1:8, and 1:16 dilutions. ...
RPR test is readily available in kit form, does not require a microscope, and its titer can be used to monitor the progression of the disease. It is also cheap and an effective screening test. VDRL test is simple and rapid, cheap, helps diagnose congenital syphilis, and is fast and easy...