The World of Toxicology
The field of Toxicology is a study of how toxins (predominantly chemicals in nature) affects organisms including humans, animals, and plants. In this case, it focuses mainly on human beings after all humans are more inclined to do drugs, medicinally, experimentally, and/or recreationally.
For medicinal purposes, hundreds or even thousands of drugs were researched and developed to fight or relieve various ailments from a simple heartburn, all the way to cancer, and other serious diseases including cardiac arrythmia, diabetes, pneumonia, and many others.
Unfortunately, as much as drugs are used to treat many ailments it also found its way into the world of recreational abuse. Today, more and more people including patients are getting medications not because they're in pain, but to get "High" and/or make lots of money selling prescribed drugs. Because the potential for abuse is great, an ovedose is the ultimate outcome that can be fatal, or has a debilitating health effects to the individual.
For these reasons, Toxicology was born to help find out what the identity and the amount of substance that the person was exposed to. In turn, this will help the physician to administer appropriate treatments to removed toxic substances in their body. In addition, the identified substance say Cocaine the progress can be monitored by doing a quantitative measurement of the amount or concentration of Cocaine in the blood. If the level is going down, for example at hourly intervals, then the treatment is successful. We hoped that the person will continue this progress by going to rehabilitation, and resist the temptation of going back to the lifestyle of doing drugs.