What is the lethal concentration, 50% kill?
a. The amount of a substance, measured in milligrams per body mass, that kills half of a group of laboratory animals to which the substance is administered during a preestablished time
b. The concentration of a substance, measured in parts per million, that kills half of a group of laboratory animals to which the substance is administered during a preestablished time
c. The concentration of a substance, in milligrams per kilogram (mg/kg), that kills a laboratory animal within 48 hours
d. The concentration of a substance to which workers can be exposed continuously for a period of approximately 15 minutes without suffering irritation, chronic or irreversible tissue damage, or narcosis sufficient to increase the risk of accidental injury, impair self-rescue, or materially reduce work-related efficiency
B
You might also like to view...
Significant vital sign changes will occur if the typical adult acutely loses more than ______ of his or her total blood volume.
A. 20% B. 5% C. 10% D. 15%
The condition in which there is an insufficient amount of sugar in the blood is called:
A) diabetic coma. B) hypoglycemia. C) hyperglycemia. D) diabetic ketoacidosis.