What does TPHA positive mean?
A positive test result means that antibodies against Treponema Pallidum are present indicating that the patient is having syphilis infection.
What is the normal range of TPHA?
| CSF abnormalities | Serum TPHA titre | |
|---|---|---|
| CSF WBC count > 5/μl, n (%) | 6 (6) | 19 (39) |
| Median (IQR)a | 7 (7–7) | 20 (11–41) |
| CSF TPHA titre ≥ 1:640, n (%) | 7 (7) | 39 (80) |
| Median (IQR)a | 1:640 (1:640–1:640) | 1:2560 (1:1280–1:10,240) |
What is the normal titer for syphilis?
A presumptive diagnosis is based on the presence of typical rash and reactive non-treponemal tests in a titer ≥1:8 in a patient with no previous history of syphilis. If history of syphilis is present, then the criteria should be a fourfold rise in titer.
What is Tpha test in pregnancy?
In order to determine whether pregnancy influences the specificity of the fluorescent treponemal antibody absorption (FTA-ABS) and Treponema palidum haemagglutination assay (TPHA) tests, these tests, together with the quantitative fluorescent treponemal antibody (FTA) and Venereal Disease Research Laboratory (VDRL) …
What is Tpha test for syphilis?
Treponema pallidum hemagglutination commonly known as TPHA is diagnostic test used to detect the dissolved amount of antibodies in the serum sample of a patient against the causative agents of syphilis.
Is Tpha and Vdrl same?
VDRL test is less likely to identify syphilis except in primary stage of disease where TPHA may appear non- reactive. Moreover, it produces more false-positive results at all stages and more false-negative results in late disease.
Can TPHA be positive after treatment?
The response of the Treponema Pallidum Haemagglutination Assay (TPHA) to treatment was studied in 61 cases of early infectious syphilis. In none of the 55 cases of early syphilis in which the pre-treatment TPHA was positive did the TPHA test become consistently negative after treatment.
