Please see Syphilis Testing Algorithms
Order test if initial immunoassay screen was performed by a separate laboratory.
Syphilis Confirmation with Reflex assumes that an immunoassay screen has been performed at a separate laboratory. This test is used to confirm initial reactive/positive testing used in the reverse syphilis screen. The interpretive statement is valid only for specimens having previously been screened and found to be reactive by a Treponemal antibody immunoassay screen.