Symptoms for Acute Onset of Severe Myocarditis. While there are several contributing factors that may lead to myocarditis, the primary cause is viral. Myocarditis usually results from the Coxsackie B virus, and may also result from measles, influenza, chicken pox, hepatitis virus, or the adenovirus in children. If an acute onset of severe myocarditis occurs, a patient may display the following symptoms:
Medical Definition of toxic. 1  1: containing or being poisonous material especially when capable of causing serious injury or death toxic drugs toxic gas. 2  2: of, relating to, or caused by a poison or toxin toxic liver damage. 3  3a: affected by a poison or toxinb: affected with toxemia of pregnancy toxic pregnant women.
A toxicant is any toxic substance. In popular usage, the term is often used to denote substances made by humans or introduced into the environment by human activity, in contrast to toxins, which are toxicants produced naturally by a living organism. Toxicants are poisonous.