There are several types of dose to consider in toxicology:
Absorbed Dose: The actual amount of a substance that enters the bloodstream. Administered Dose: The quantity given to an organism at one time. Effective Dose (ED): The amount of a substance that causes a specific effect in a given percentage of a population. Lethal Dose (LD): The amount of a substance that causes death in a certain percentage of a population. LD50 is a common measure, indicating the dose lethal to 50% of a test population.
