Laboratory Safety and Design Quiz

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Questions and Answers

What type of shoes should be worn in the laboratory?

High heeled shoes for better stability

Any style of shoes is acceptable

Shoes with open toes

Nonporous material with closed toes and heels (correct)

What is recommended for individuals wearing contact lenses in the lab?

Surgical masks

Goggles or face shields (correct)

Regular glasses

No special precautions are needed

Which behavior is prohibited in the laboratory?

Working with open flames

Keeping a clean working area

Eating and drinking (correct)

Following lab procedures

What should be done with contaminated personal protective equipment (PPE)?

Properly dispose of it before leaving the laboratory Signup and view all the answers

Which of the following is considered a chemical hazard?

Explosive substances Signup and view all the answers

What should never be done in the laboratory to ensure safety?

Perform unauthorized experiments Signup and view all the answers

How should gloves be removed to avoid contamination?

Use the beaking method Signup and view all the answers

What is the most dangerous thing in any laboratory according to safety guidelines?

Being unaware of chemical usage Signup and view all the answers

What is the primary purpose of laboratory safety practices?

To minimize hazards to personal health and the environment Signup and view all the answers

Which feature is essential in laboratory design to prevent slip hazards?

Floor drains that slope towards them Signup and view all the answers

Which personal protective equipment is crucial for protecting the eyes in a laboratory setting?

Safety goggles Signup and view all the answers

What kind of ventilation systems are essential in a laboratory environment?

Fans and fume hoods Signup and view all the answers

Which laboratory design component is important for ensuring a water supply?

Sinks in several locations Signup and view all the answers

Why should a laboratory incorporate spill control materials?

To effectively manage chemical spills and clean up safely Signup and view all the answers

In terms of personal safety, which body parts are most commonly subject to injury in the laboratory?

Eyes and respiratory tract Signup and view all the answers

What is a critical component of laboratory safety equipment?

Fire extinguishers Signup and view all the answers

Which substance is classified as toxic?

Calcium cyanide Signup and view all the answers

What is the primary risk associated with corrosive substances?

Can destroy or burn living tissue Signup and view all the answers

Which of the following is an example of a carcinogenic substance?

Asbestos Signup and view all the answers

What symbol represents an oxidizing agent?

Flame over circle Signup and view all the answers

Which substance is considered an irritant?

Copper acetate Signup and view all the answers

What defines an environmental hazard?

Substances that threaten natural environments or human health Signup and view all the answers

Which of the following is a common example of a corrosive substance?

Sulfuric acid Signup and view all the answers

What is the significance of a biohazard symbol?

Indicates materials posing a threat to health Signup and view all the answers

What should be done when diluting an acid?

Pour the acid into the water. Signup and view all the answers

Which of the following items requires a biohazard label?

Containers that hold human blood and body fluids. Signup and view all the answers

What is the purpose of a Material Safety Data Sheet (MSDS)?

To offer safety guidelines for hazardous materials. Signup and view all the answers

Which of the following should be included in the MSDS?

Permissible Exposure Limit (PEL) Signup and view all the answers

What is a major guideline for chemical disposal?

Neutralize acids and bases before disposal. Signup and view all the answers

Which label must specifically indicate the presence of a radioactive substance?

Radioactive symbol. Signup and view all the answers

What should not be done when handling chemicals?

Smell chemicals to identify them. Signup and view all the answers

Why is it important to clearly label chemical containers?

To ensure proper storage and usage. Signup and view all the answers

What should clinical laboratories do to comply with the new hazard communication Standard?

Implement a written hazard communication program. Signup and view all the answers

Which of the following actions is necessary when dealing with broken instruments?

Use tongs or handles to pick them up. Signup and view all the answers

What should you do if a chemical spills on your skin?

Rinse with water for at least 15 minutes. Signup and view all the answers

What is the correct procedure when a concentrated acid or base spills on the floor?

Dilute with water first, then neutralize. Signup and view all the answers

Which is not a recommended action when heating glassware?

Point the open end of a test tube at others. Signup and view all the answers

How should you handle electrical cords and appliances in the laboratory?

Ensure they are away from water. Signup and view all the answers

What type of container should biological waste be disposed of in?

Safe specific container. Signup and view all the answers

What should you do with materials safety data sheets (MSDS) in the laboratory?

Keep them readily accessible to all lab workers. Signup and view all the answers

Study Notes

Laboratory Design

Doors should be present for both entry and exit
Lab benches must have a sink with a water supply, and should be U-shaped
Ventilation system should have windows, fans, fume hoods, and biological safety cabinets
Lighting levels should be adequate on lab bench and floor level
Floor drains should be near lab units, floors slopes to the drain minimizes slip hazards
Labs should have spill control materials, safety equipment like eyewash units, fire blankets and fire extinguishers

Personal Protective Equipment

Shoes should be nonporous, closed-toe and have a heel
Contact lenses are discouraged, but goggles or face shields are recommended if contact lenses are worn
Long hair must be tied back when working with open flames

Behavior in the Lab

Follow lab procedures exactly and never conduct unauthorized experiments
Keep working area clean
Food and drinks are not permitted in the lab
Smoking is prohibited in the laboratory
No practical jokes allowed
All contaminated PPE must be removed and properly disposed of before exiting the laboratory
Gloves should be removed using the beaking method to avoid contamination
Do not enter the lab without knowing how to safely use chemicals and identifying them correctly

Laboratory Hazards

Chemical Hazards:
- All chemical containers should be labeled
- Hazard warning signs should clearly mark areas where flammables, hazardous or toxic chemicals, and carcinogens are stored or used
- Biohazard signs should mark blood and body fluids storage and analysis areas
- The National Fire Protection Association (NFPA) hazard identification system should be clearly understood and followed
Fire Hazards:
- Know how to use a fire extinguisher
Sharp Objects Hazard:
- Never catch broken instruments
- Grasp sharp instruments only by the handles or tongs
- Dispose broken glass appropriately
Electrical Hazards:
- Keep all electrical cords, wires, and appliances away from water
Physical Hazards:
- Handle equipment carefully
- Do not place personal bags on lab desk or objects on floor
Biological Hazards:
- Sterilize using an autoclave before getting rid of
- Place in specific biohazard containers
Heating Hazards:
- Do not point the end of a heated test tube towards self or others
- Do not heat in a closed container
- Heated glassware should be handled with tongs or gloves
- Do not place hot glassware directly in cold water
- Never look into a container when it is heated

Chemical Safety Rules

Read all labels twice before handling any chemical
Use only the chemical type and amount specified
Never touch, taste, or smell a chemical unless instructed
Never mix chemicals unless instructed
Transfer chemicals carefully
When diluting an acid, pour the acid into water, never the other way around
Consider all chemicals dangerous

Chemical Waste Disposal

Treat chemicals before disposal in the sewer system
Acids and bases should be neutralized
Metal precipitations and safe reduction of strong oxidizers should be carried out when possible
Pour chemicals in sand pocket or allow water from tap before pouring them into the sink

Material Safety Data Sheet (MSDS)

It is a major source of safety information for students
Can be obtained from chemical manufacturer or by developing one for each hazardous agent

Emergency Procedures

Acid and Base Spills:
- Know how to deal with concentrated acid and base spills
- First aid for skin: rinse with water for 15 minutes, apply local anti-inflammatory drug
- First aid for eyes: use eye wash station
Spills on Floor:
- Use laboratory spills kit to clean floor
- Dilute the spill with water
- Neutralize with appropriate materials
Spills on Benches:
- Clean using a similar method as spills on the floor

Important Notes

Ensure a written hazard communication program is in place
Educate lab workers on a yearly basis on the interpretation of chemical labels, MSDS, and health hazards
Maintain hazard warning labels on all containers received or filled on site

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Description

Test your knowledge on laboratory design and safety protocols. This quiz covers essential aspects such as equipment standards, personal protective equipment, and proper lab behavior. Ensure you're familiar with the guidelines to maintain a safe and efficient lab environment.