Some substances are more toxic than others. The toxicity of a substance is described by the types of effects it causes and its potency. 1  Types of Effects: Different chemicals cause different effects.
I think I remember reading that injured means bruises and lascerations, seriously injured meant hospital but not life threatening, critically injured meant hospital ICU time and fatally injured meant injuries leading to dying sometime later.
A critically ill child is someone: 1  who is under 18 years of age, and. 2  who is your child, step-child, foster child or child under your legal guardianship, and. 3  whose baseline state of health has significantly changed and whose life is at risk as a result of an illness or injury.