TABLE 4.

Types of Syphilis Tests Offered In-house (n = 81)

Type of Syphilis Test	In-house, n (%)
Dark-field microscopy	9 (11.1)
RPR quantitative	55 (67.9)
RPR qualitative	59 (72.8)
Direct fluorescent antibody	1 (1.2)
Western blot	2 (2.5)
Venereal Disease Research Laboratory	34 (42.0)
Unheated serum reagin	2 (2.5)
Unheated serum test	0 (0.0)
EIA, CIA, MBIA	21 (25.9)
NAAT	2 (2.5)
Fluorescent treponemal antibody absorption	15 (18.5)
T. pallidum particle agglutination	54 (66.7)
CLIA-waived point-of-care test/rapid diagnostic kit	4 (4.9)

CIA indicates chemiluminescence immunoassay; CLIA, Clinical Laboratory Improvement Amendments; EIA, enzyme immunoassay; MBIA, microbead immunoassay.