RT Book, Section A1 McCain, Keith R. A1 Foster, Howell R. A2 Sutton, S. Scott SR Print(0) ID 7256454 T1 Chapter 66. Clinical Toxicology T2 McGraw-Hill's NAPLEX® Review Guide YR 2011 FD 2011 PB The McGraw-Hill Companies PP New York, NY SN 978-0-07-175562-7 LK accesspharmacy.mhmedical.com/content.aspx?aid=7256454 RD 2024/04/19 AB Clinical toxicology involves the assessment and management of disease caused by exposure to an agent(s) in which adverse effects may develop. All natural and synthetic xenobiotics are capable of causing toxicity in humans. It is paramount to recognize that all substances can be poisonous in a specific situation. Paracelsus, the father of modern toxicology, identified this principle in stating that "solely the dose determines that a thing is not a poison.“1 As such, some agents are capable of severe consequence at microgram dose (botulinum toxin) while others are typically viewed as harmless, but at extremes can be lethal (water intoxication).2