CLT Laboratory Safety & Compliance 2 — Questions and Answers
Question 1: Which OSHA standard specifically requires employers to provide hepatitis B vaccination to employees with occupational exposure to blood?
- Hazard Communication Standard
- Bloodborne Pathogen Standard (29 CFR 1910.1030) (Correct answer)
- Personal Protective Equipment Standard
- Respiratory Protection Standard
Correct answer: Bloodborne Pathogen Standard (29 CFR 1910.1030)
OSHA's Bloodborne Pathogen Standard (29 CFR 1910.1030) mandates that employers offer hepatitis B vaccination at no cost to employees with occupational exposure.
Question 2: A sharps container in the clinical lab is considered full and ready for disposal at what fill level?
- 100% capacity
- 75% capacity (Correct answer)
- 50% capacity
- 25% capacity
Correct answer: 75% capacity
Sharps containers should be sealed and disposed of when they reach 75% capacity to prevent overfilling and needlestick injuries.
Question 3: Which class of fire extinguisher is appropriate for electrical equipment fires in the laboratory?
- Class A
- Class B
- Class C (Correct answer)
- Class D
Correct answer: Class C
Class C fire extinguishers use non-conductive agents (CO2 or dry chemical) and are rated for electrical equipment fires.
Question 4: What does the term 'engineering controls' refer to in laboratory safety?
- Written safety policies and procedures
- Physical or mechanical devices that reduce exposure to hazards (Correct answer)
- Training programs for lab personnel
- Personal protective equipment worn by employees
Correct answer: Physical or mechanical devices that reduce exposure to hazards
Engineering controls are physical or mechanical devices such as biosafety cabinets, safety needles, and fume hoods that minimize worker exposure to hazards.
Question 5: Which regulatory body requires clinical laboratories to maintain a Chemical Hygiene Plan?
- CDC
- OSHA (Correct answer)
- CAP
- FDA
Correct answer: OSHA
OSHA's Laboratory Standard (29 CFR 1910.1450) requires laboratories to develop and implement a written Chemical Hygiene Plan.
Question 6: When decontaminating a biological spill with 10% bleach, what is the minimum contact time recommended before cleanup?
- 30 seconds
- 1 minute
- 10 minutes (Correct answer)
- 30 minutes
Correct answer: 10 minutes
A minimum contact time of 10 minutes for 10% bleach (sodium hypochlorite) is recommended to ensure effective decontamination of biological spills.
Question 7: Which type of biological safety cabinet provides personnel, product, and environmental protection?
- Class I
- Class II (Correct answer)
- Class III
- Laminar flow clean bench
Correct answer: Class II
Class II biosafety cabinets provide all three levels of protection: personnel, product, and environmental, through HEPA filtration and directional airflow.
CLT Laboratory Safety & Compliance 2
Which OSHA standard specifically requires employers to provide hepatitis B vaccination to employees with occupational exposure to blood?