What tests can be used during prenatal care to screen for syphilis in pregnancy?
Diagnostic tests for syphilis are classified into treponemal tests (TT) and non-treponemal tests (NTT).
NTT include the VDRL (Venereal Disease Research Laboratory), USR (VDRL modified for unheated serum), and RPR (Rapid Plasma Reagin, involving the addition of carbon particles and macroscopic reading). These tests measure antibodies produced in response to the infection.