Question 1

MSDS stands for:

Accepted Answer

MSDS stands for Material Safety Data Sheet, which provides information about the potential hazards of a chemical product and how to safely handle and use it.

Question 2

Which part of the chemical hazard communication program must describe how chemicals are handled in the workplace?

Accepted Answer

The written program is the part of the chemical hazard communication program that outlines procedures for handling chemicals safely in the workplace.

Question 3

Which of the following statements is true regarding hand protection when handling chemicals?

Accepted Answer

Latex gloves can degrade when exposed to chemicals, allowing contaminants to pass through to the skin.

Question 4

Which of the following is true for control of a mercury spill?

Accepted Answer

Mercury can release toxic vapors that can be inhaled, so it is important to wear a mask and gloves, preferably utility-type, to protect against exposure. Spill kits should also contain appropriate equipment such as disposable towels, scoops, and sealable containers, but a handheld vacuum cleaner is not recommended as it can spread the mercury particles and vapors. Mercury spill kits should be available in all dental offices that use amalgam for restorations, regardless of whether the mercury is pre-capsulated or not.

Question 5

A rubber or neoprene apron should be worn when:

Accepted Answer

A rubber or neoprene apron should be worn when mixing or pouring chemicals that are caustic to protect the skin from chemical burns or irritation.

Question 6

Acute chemical toxicity results from ______ levels of exposure over a _____ period of time.

Accepted Answer

Acute toxicity is characterized by a high level of exposure over a short period of time.

Question 7

If eyes are exposed to acids used during manipulation of various dental materials, it is recommended to use the nearest eye wash station and flush the eyes with water for at least:

Accepted Answer

Flushing the eyes with water for at least 5 minutes is recommended to ensure that any acid is thoroughly diluted and removed, minimizing potential damage to the eyes.

Question 8

It is the responsibility of the ____________________ to assess the hazards of products produced by the chemical manufacturers and pass this information on to consumers.

Accepted Answer

Chemical manufacturers are responsible for assessing the hazards of their products and communicating this information to consumers, typically through labels and safety data sheets.

Question 9

Which of the following is essential to prevent severe injury if acids such as phosphoric, hydrofluoric, or hydrochloric acid are splashed on the skin, eyes, or clothing during manipulation of various dental materials?

Accepted Answer

Flushing with water is essential to immediately dilute and remove the acid from the skin, eyes, or clothing to prevent severe injury.

Question 10

Which of the following is recommended to help manage the patient's airway during dental procedures?

Accepted Answer

Using high-velocity evacuation (HVE) and a rubber dam helps to manage the patient's airway by minimizing the risk of aspiration and reducing the amount of aerosol and debris in the mouth during dental procedures.

Question 11

Which color of the National Fire Protection Association (NFPA) labeling system denotes reactivity?

Accepted Answer

According to the NFPA labeling system, yellow denotes reactivity. The other colors represent health hazards (blue), flammability (red), and special hazards such as water reactiveness or oxidizers (white).

Question 12

Particulates smaller than 5 microns are:

Accepted Answer

Aerosols are tiny particles or droplets in the air that are smaller than 5 microns.

Question 13

Which of the following would not be considered as part of the PPE for laboratory purposes?

Accepted Answer

A rubber dam is typically used in dental procedures to isolate the operative site from the rest of the mouth, not as personal protective equipment in a laboratory setting.

Question 14

Which of the following is true concerning labeling of chemicals in the dental office?

Accepted Answer

All chemicals in the dental office must be labeled to ensure safety and compliance with regulations.

Question 15

A basic "safe" policy for the storage of dental medications and chemicals is to keep them in a ____________, dark place where they are not exposed to direct sunlight.

Accepted Answer

The best choice is to keep dental medications and chemicals in a dry, cool place where they are not exposed to direct sunlight. This will help to prevent degradation of the chemicals or medications and reduce the risk of fire or other hazards. A wet, warm or wet, cool environment could potentially cause the medications or chemicals to become contaminated or reduce their effectiveness.

Question 16

When dust is generated and inhaled, it is referred to as:

Accepted Answer

Particulate matter refers to tiny particles or droplets in the air, which includes dust that can be inhaled.

Question 17

Which of the following are considered to be personal protective equipment (PPE)?

Accepted Answer

Personal protective equipment (PPE) includes items worn to protect against health or safety risks, such as masks, eyewear, gowns, and hair coverings.

Question 18

Staff training for a hazard communication program is required once ______ for all continuing employees.

Accepted Answer

Staff training for a hazard communication program is required once a year for all continuing employees.Training is also required when a new employee is hired and when a new chemical product is added to the office.

Question 19

Which of the following is a symptom of acute chemical toxicity?

Accepted Answer

Nausea is a common symptom of acute chemical toxicity, while the other options describe long-term effects that may result from exposure to chemicals.

Question 20

A substance is defined as being corrosive if the pH is less than ____ or greater than 12.5.

Accepted Answer

A substance is considered corrosive if its pH is less than 2.0 or greater than 12.5. This is because at these extreme pH values, the substance will react strongly with other materials and can cause damage through corrosion.

Quiz 4: General Handling and Safety