The present disclosure provides methods and apparatuses for generating toxicology reports. Using the methods and apparatus disclosed herein, physicians can more easily understand toxicological lab test results. Physicians receive a toxicology report that explains, in plain language, the toxicological lab test results. A rules engine provides rules for interpreting the toxicological lab test results. Detailed explanations are associated with the rules, and the explanations appear on the toxicology report. The toxicology report greatly reduces the need for the physician to call the toxicology scientist.