Question 1

Through what physiological system would poison ivy have an effect on gardeners and agricultural workers?

Accepted Answer

Poison ivy affects the immune system by causing an allergic reaction when the skin comes into contact with urushiol, the oil found in the plant.

Question 2

What is the difference between a fume and a vapour?

Accepted Answer

D

Question 3

What are the types of control measures that can be used to ensure the safe handling of both chemical and low-level biological agents?

Accepted Answer

Engineering, administrative, and work practices/procedures are the three types of control measures that can be used to ensure the safe handling of both chemical and low-level biological agents.

Question 4

The Globally Harmonized System is a system that would establish consistency around the world in terms of which of the following?

Accepted Answer

The Globally Harmonized System (GHS) is designed to standardize the classification and labeling of chemicals to ensure safety and consistency across international borders.

Question 5

Which of the following is NOT considered one of the basic levels of protection within the respiratory tract?

Accepted Answer

The esophagus is not part of the respiratory tract, it is part of the digestive tract.

Question 6

Sensitization is an example of which of the following?

Accepted Answer

Sensitization is an example of chronic toxicity because it involves a delayed or long-term adverse effect resulting from repeated exposure to a substance.

Question 7

Which of the following factors allows a solvent to spread evenly and quickly?

Accepted Answer

Low surface tension allows a solvent to spread evenly and quickly because it reduces the cohesive forces between the solvent molecules, making it easier for them to spread out and cover a larger surface area.

Question 8

Which of the following factors would have the greatest impact on a solvent's effectiveness?

Accepted Answer

A low boiling point is crucial for a solvent's effectiveness as it allows for easy evaporation, which is important for processes like drying and separation.

Question 9

Ciera's is a 55-year-old registered nurse who works in a large hospital. Ciera recently contracted a bacterial infection from a patient. Her treatment was a course of antibiotics. Following her treatment Ciera noticed she had trouble hearing. She visited an audiologist who informed her that her recent hearing loss is likely the result of ototoxicity. Which of the following is most likely the cause of Ciera's hearing loss?

Accepted Answer

Antibiotics, particularly aminoglycosides, are known to cause ototoxicity, which can lead to hearing loss.

Question 10

Besides record keeping, what control measure ensures that baseline tests will be available when needed?

Accepted Answer

Medical surveillance ensures that baseline tests are conducted and available when needed, as it involves regular health monitoring and record-keeping of employees' health data.

Question 11

Marco is a hair stylist for a large salon. On an average day Marco sees up to 12 clients, many of whom have their hair coloured. Consequently, Marco is frequently mixing chemical agents and using various toners and bleaching compounds. Marco is at risk for which of the following if he does not follow proper hand hygiene protocols?

Accepted Answer

Marco is at risk for dermatitis due to frequent exposure to chemical agents and compounds used in hair coloring, which can irritate the skin if proper hand hygiene and protective measures are not followed.

Question 12

Evan is the OH&S manager for a research lab that has Biosafety Level 1 (BSL 1) organisms. What does he need to do to protect himself from this type of organisms?

Accepted Answer

Biosafety Level 1 (BSL 1) organisms are not known to consistently cause disease in healthy adults and are considered low risk. Basic hygiene practices, such as washing hands before eating, are sufficient for protection.

Question 13

Vapours are mostly likely to enter the body via which of the following routes of entry?

Accepted Answer

Vapours are most likely to enter the body through respiration as they are inhaled into the lungs.

Question 14

What is the recommended remedy for occupational asthma (e.g. crab asthma experienced by the snow crab workers in Newfoundland)?

Accepted Answer

The recommended remedy for occupational asthma is to avoid exposure to the allergen or irritant, which often means changing to employment in another industry.

Question 15

Which of the following is NOT considered a biohazard?

Accepted Answer

Aerosol is a suspension of fine solid particles or liquid droplets in air or another gas, and is not inherently a biohazard like bacteria, viruses, or prions.

Question 16

Which of the following is most likely to create a synergistic effect with airborne chemicals in a manufacturing plant?

Accepted Answer

The answer of Which of the following is most likely...

Question 17

The immediate pain and discoloration you experience after burning your hand on a hot surface is an example of which of the following?

Accepted Answer

Acute toxicity refers to the immediate adverse effects that occur after a single exposure to a toxic substance. In this case, the burning sensation and discoloration experienced after burning your hand on a hot surface are examples of acute toxicity.

Question 18

A smoker who works for an asbestos removal company is more likely to develop lung cancer than a nonsmoker due to which of the following?

Accepted Answer

Synergism refers to the interaction of two or more agents or factors so that their combined effect is greater than the sum of their individual effects. In this case, smoking and asbestos exposure together significantly increase the risk of lung cancer.

Question 19

Employees with diabetes and other conditions often need to inject themselves at work to manage their condition. What is an administrative control that the human resource management department can implement to protect everyone from needlestick injuries?

Accepted Answer

Providing education and training to all employees is an administrative control that helps ensure everyone is aware of the risks and proper procedures to prevent needlestick injuries.

Question 20

What type of biological agents if inhaled can cause occupational diseases in farm workers?

Accepted Answer

The answer of What type of biological agents if inhaled...

Quiz 6: Biological and Chemical Agents