Reagent test packages from Bunk Police can identify hundreds of adulterants as well as substitutes-- offering assurance and also possibly saving your life. Nevertheless, for now, it is not generally included in basic drug screens. LSD can be found in blood for 6 to 12 hours and also in urine for two to 4 days. However, one metabolite (2-oxo-3-hydroxy-LSD) is commonly existing in higher focus and also can be identified for longer amount of times in urine.