Toxicology Quiz

What are xenobiotics?

• Substances that are produced in the body.

• Exogenous agents that can have an adverse effect on a living organism.

• Substances used to describe environmental chemicals produced in a living cell.

• Endogenous substances biologically synthesized in living cells.

Which of the following is an example of a toxin?

• Poison hemlock

• Xenobiotics

• Clostridium botulinum

• Botulinum toxin

What is the specialty within toxicology that the lecture mentions?

• Environmental toxicology

• Clinical toxicology

• Pharmacological toxicology

• Occupational toxicology

Which routes of exposure to toxins are most common?

• Ingestion, inhalation, and transdermal absorption

• Ingestion, injection, and ocular absorption

• Inhalation, injection, and transdermal absorption

• Ingestion, ocular absorption, and transdermal absorption

What percentage of toxic exposures are accidental?

• 20%

• 30%

• 50%

• 60%

What does the term 'toxicant' refer to?

• Substances that are produced in the body.

• Exogenous agents that can have an adverse effect on a living organism.

• Substances used to describe environmental chemicals not produced in a living cell.

• Endogenous substances biologically synthesized in living cells.

What does the term LD50 refer to in toxicology?

• The lethal dose for 50% of the population.

• The effective dose for 50% of the population.

• The toxic dose for 50% of the population.

• The minimal dose for 50% of the population.

¿Qué tipo de toxicidad se asocia con la exposición repetida y frecuente al alcohol?

• Aguda

• Crónica

• Metabólica

• Ninguna de las anteriores

¿Cuál de los siguientes es un indicador común de abuso de etanol?

• Bajo nivel de MCV debido a la deficiencia de vitamina B12

• GGT elevado antes de las consecuencias patológicas

• Relación AST/ALT inferior a 2

• Contenido de alcohol en sangre inferior a 80 mg/dL

¿Qué sustancia no reaccionará con la enzima alcohol deshidrogenasa?

• Etanol

• Metanol

• Isopropanol

• Acetaldehído