#1
Which of the following is a principle of toxicology?
The dose makes the poison
The higher the dose, the lower the toxicity
Toxicity is solely determined by chemical structure
All substances are equally toxic
#2
What is the first step in an emergency response to a toxicological incident?
Evaluation of the scene
Calling for medical assistance
Evacuating the area
Identifying the toxic substance
#3
Which of the following is NOT a factor influencing toxicity?
Age
Gender
Body weight
Eye color
#4
What is the main goal of decontamination in a toxicological emergency?
Neutralize the toxic substance
Remove the toxic substance from the environment
Prevent further exposure to the toxic substance
Treat the symptoms of exposure
#5
What is the most common route of exposure to toxic substances in the workplace?
Inhalation
Ingestion
Dermal absorption
Injection
#6
Which of the following is a characteristic of a nerve agent?
They primarily affect the skin
They cause immediate incapacitation
They are easily neutralized by water
They have a garlic-like odor
#7
Which route of exposure involves absorption through the skin or mucous membranes?
Inhalation
Ingestion
Dermal
Injection
#8
What is the LD50?
The lethal dose for 10% of the population
The dose that causes no harm
The lethal dose for 50% of the population
The lowest dose that causes a toxic effect
#9
Which of the following is NOT a symptom of organophosphate poisoning?
Miosis
Diarrhea
Bradycardia
Hyperthermia
#10
What is the mechanism of action of cyanide poisoning?
Inhibition of acetylcholinesterase
Inhibition of cytochrome c oxidase
Blockade of sodium channels
Disruption of cell membrane integrity
#11
What is the mainstay of treatment for heavy metal poisoning?
Administering antidotes
Performing chelation therapy
Providing supportive care
Inducing vomiting
#12
Which of the following is a characteristic of a Type II chemical agent?
They primarily affect the skin
They cause delayed effects
They are easily decontaminated
They are often used as nerve agents
#13
Which of the following is a characteristic of a Type I chemical agent?
They primarily affect the respiratory system
They are usually persistent in the environment
They cause immediate incapacitation
They are often used as riot control agents
#14
Which of the following is NOT a characteristic of a blister agent?
They cause blistering of the skin
They primarily affect the respiratory system
They can cause severe eye irritation
They are commonly used in chemical warfare
#15
What is the primary target organ of acetaminophen toxicity?
#16
Which of the following is NOT a characteristic of a riot control agent?
They cause immediate irritation of the eyes and respiratory tract
They are typically non-lethal at low doses
They have long-lasting effects on the environment
They are used for crowd control purposes
#17
What is the main mechanism of action of paraquat poisoning?
Inhibition of acetylcholinesterase
Inhibition of cytochrome c oxidase
Generation of reactive oxygen species
Blockade of sodium channels