Increment 3 Flashcards
Hazards can be classified as what 3 categories:
- Hazard
- Chemical
- Biological
What is the total quantity of a toxic agent administered?
Dose
What is the concentration, frequency and duration to which personnel are subjected to a hazard?
Exposure
What is the level of exposure at which an effect is first seen?
Threshold
When do you see clinical signs of a toxic exposure?
Toxin exceeds threshold level
What can affect the onset of clinical signs?
- Strength of the host and their individual defenses
- Acquired conditions/genetics can increase susceptibility to a toxin
What is used to compare the relative toxicities of chemicals?
Quantitative Measure
What kind of graph shows the progression of increasing doses?
Dose-response curve
What is the study of how a substance gets into the body and what happens to that substance?
Toxicokinetics
4 processes of toxicokinetics
- Absorption
- Distribution
- Metabolism
- Excretion