Venereal Disease Research Laboratory test

The Venereal Disease Research Laboratory test (VDRL) is a blood test for syphilis and related non-venereal treponematoses that was developed by the eponymous US laboratory. The VDRL test is used to screen for syphilis (it has high sensitivity), whereas other, more specific tests are used to diagnose the disease.

Source: Wikipedia — Venereal Disease Research Laboratory test (CC BY-SA 4.0)