A Venous Blood Gas (VBG) is a quick lab test that measures the pH, carbon dioxide, bicarbonate, and lactate levels from a blood sample taken out of a vein. [1] (https://www.youtube.com/watch?v=kMTi-Ewjua8), [2] (https://geekymedics.com/venous-blood-gas-vbg-interpretation/)Chikhali Chinchwad