Yes, using THCA can potentially lead to you to fail a drug check if it’s heated and transformed into THC. Most drug tests screen for THC, not THCA, but once THCA is converted to THC by way of smoking cigarettes, vaping, or cooking, it could be detected with your procedure. https://landennxazp.webbuzzfeed.com/34277367/facts-about-unheated-cannabis-blossoms-revealed