HAZWOPER
40 Lesson 3 Toxicology Exam
Questions with Correct Answer
(UPDATE VERIFIED)
________ is the most common route of exposure leading to a toxic dose in the work
environment
Injection
Ingestion
Inhalation
Eye/Skin contact - ANSWER-
.________ provide most of what we know about the dangerous effects of toxic
substances.
Epidemiological studies
Animal studies
Estimation studies
Actual exposures to a chemical in the workplace - ANSWER-Epidemiological studies
Animal studies
.________ refers to the specific amount of particular material that results in a death in
sample group of lab animals.
Constant number of deaths
Share of deaths
Lethal dose
Majority of deaths - ANSWER-Lethal dose
.A(n) ________ is the airborne concentration of a material to which nearly all individuals
may be repeatedly expose without adverse health effects.
Chemical exposure
Sensitizer threshold
Exposure limit
Irritant level - ANSWER-Exposure limit
.An example of a chronic response to chemical exposure is ________.
Nausea
Brain or muscle damage
Liver, kidney, or lung damage
, All of the above - ANSWER-Liver, kidney, or lung damage
.An instance where a chemical without any known toxic effect acts together with a
known toxic substance to make the toxic substance even more potent and dangerous is
known as:
Antagonism effect
Synergistic effect
Potentiation effect
Additive effect - ANSWER-Syn
.An interaction between a hazardous chemical and a prescription drug being taken by
worker is possible.
True
False - ANSWER-True
.Animal studies provide most of what we know about the dangerous effects of toxic
substances. Humans may react differently than animals exposed to toxic materials.
False
True - ANSWER-True
.Chemical for deprived the victim's body tissue of oxygen are called ________.
Mutagens
Irritants
Carcinogens
Asphyxiants - ANSWER-Asphyxiants
.Chemicals in combination can produce different biological responses than the
responses seen when exposure is to one chemical alone.
True
False - ANSWER-True
.Chemicals that affect various tissues causing redness, rashes, or even imaging are
called ________.
Mutagens
Irritants
Carcinogens
Asphyxiant - ANSWER-
.Example of chemical ________ are carbon monoxide and hydrogen cyanide.
Hepatoxins
40 Lesson 3 Toxicology Exam
Questions with Correct Answer
(UPDATE VERIFIED)
________ is the most common route of exposure leading to a toxic dose in the work
environment
Injection
Ingestion
Inhalation
Eye/Skin contact - ANSWER-
.________ provide most of what we know about the dangerous effects of toxic
substances.
Epidemiological studies
Animal studies
Estimation studies
Actual exposures to a chemical in the workplace - ANSWER-Epidemiological studies
Animal studies
.________ refers to the specific amount of particular material that results in a death in
sample group of lab animals.
Constant number of deaths
Share of deaths
Lethal dose
Majority of deaths - ANSWER-Lethal dose
.A(n) ________ is the airborne concentration of a material to which nearly all individuals
may be repeatedly expose without adverse health effects.
Chemical exposure
Sensitizer threshold
Exposure limit
Irritant level - ANSWER-Exposure limit
.An example of a chronic response to chemical exposure is ________.
Nausea
Brain or muscle damage
Liver, kidney, or lung damage
, All of the above - ANSWER-Liver, kidney, or lung damage
.An instance where a chemical without any known toxic effect acts together with a
known toxic substance to make the toxic substance even more potent and dangerous is
known as:
Antagonism effect
Synergistic effect
Potentiation effect
Additive effect - ANSWER-Syn
.An interaction between a hazardous chemical and a prescription drug being taken by
worker is possible.
True
False - ANSWER-True
.Animal studies provide most of what we know about the dangerous effects of toxic
substances. Humans may react differently than animals exposed to toxic materials.
False
True - ANSWER-True
.Chemical for deprived the victim's body tissue of oxygen are called ________.
Mutagens
Irritants
Carcinogens
Asphyxiants - ANSWER-Asphyxiants
.Chemicals in combination can produce different biological responses than the
responses seen when exposure is to one chemical alone.
True
False - ANSWER-True
.Chemicals that affect various tissues causing redness, rashes, or even imaging are
called ________.
Mutagens
Irritants
Carcinogens
Asphyxiant - ANSWER-
.Example of chemical ________ are carbon monoxide and hydrogen cyanide.
Hepatoxins
