Nontreponemal serologic tests detect nonspecific antibodies and not those that are made by the spirochete, *Treponema pallidum* which causes syphilis. This test should be performed in conjunction with treponemal serologic tests. 

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- nontreponemal serologic test
- treponemal serologic test
- Silver stain microscopy

Diagnostic tests for syphilis

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Silver stain microscopy is a type of staining that be used to visualize *Treponema pallidum* spirochetes. It kills the bacteria is the process of staining, but it allows for easier visualization. It can be a diagnostic for syphilis.

Silver stain microscopy

Treponemal serologic tests detect antibodies that are produced by *Treponema pallidum*.

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