VDRL (RPR), Serum

To screen for or diagnose an infection with the bacterium Treponema pallidum, which causes syphilis, a sexually transmitted disease (STD)

When you have symptoms of a syphilis infection; when you are at risk of being exposed to syphilis, such as when you have another STD or HIV infection, are a man who has sex with men, have a sexual partner diagnosed with syphilis, or have engaged in high-risk sexual activity; when you are pregnant