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.
Fluid resuscitation in critical care. Fluid resuscitation is one of the most important aspects of the acute medical management of critically ill patients. Fluid volume deficits may be the result of excessive fluid loss, insufficient fluid intake or a combination of the two.