A test that uses gelatin particles sensitized with T.pallidum subsp.pallidum antigens to detect specific antitreponemal antibodies in patient serum is called the __________ test.
A)RPR
B)FTA-ABS
C)VDRL
D)TP-PA

Question

Quizplus · Accepted Answer

Specific treponemal serologic tests include the FTA-ABS and the TP-PA tests.The TP-PA test uses gelatin particles sensitized with T.pallidum subsp.pallidum antigens.Serum samples are diluted in a microtiter plate,and sensitized gelatin particles are added.The presence of specific antibody causes the gelatin particles to agglutinate and form a flat mat across the bottom of the microdilution well in which the test is performed.

A Test That Uses Gelatin Particles Sensitized with T