Instructions for Performing 20WBCT to detect coagulopathy in snakebite patients (November, 2022) Instructions for Performing the 20-Minute Whole Blood Clotting Test (20WBCT) to detect coagulopathy in snakebite patients (November 2022) Ministry of Health, National Unity Government. Published on: 2 December 2022Last Updated: 2 December 2022