BACE Laboratory Safety and Regulations 2

Question 1

What is the OSHA Hazard Communication Standard (HCS) 'Right to Know' law primarily focused on?

Accepted Answer

Ensuring workers have access to information about hazardous chemicals in the workplace through labels and Safety Data Sheets

Answer

The HCS (29 CFR 1910.1200) requires chemical manufacturers to provide hazard information via labels and SDSs, and employers to train workers on chemical hazards and make SDSs accessible.

Question 2

What type of eye protection is required when working with potentially infectious biological materials or chemical splashes?

Accepted Answer

Chemical splash goggles or a face shield worn over safety glasses

Answer

Chemical splash goggles seal around the eyes and protect against liquid splashes; standard safety glasses alone do not prevent liquid from entering above, below, or beside the lens.

Question 3

What is the proper first response action when a researcher spills a small volume of a mildly corrosive acid (dilute HCl) on their bare forearm?

Accepted Answer

Immediately flush the affected area with large amounts of water for at least 15-20 minutes

Answer

Immediate and copious water flushing for 15-20 minutes dilutes and removes the acid, minimizing tissue damage — neutralization pastes can cause exothermic reactions and should not be applied first.

Question 4

Under OSHA's Bloodborne Pathogen Standard (29 CFR 1910.1030), who must be offered the hepatitis B vaccine at no cost?

Accepted Answer

Employees with occupational exposure to blood or other potentially infectious materials (OPIM)

Answer

The standard requires employers to offer hepatitis B vaccination at no cost to employees with occupational exposure risk — those whose jobs involve potential contact with blood or OPIM.

Question 5

What is the purpose of a 'Threshold Limit Value — Short Term Exposure Limit' (TLV-STEL) for a chemical?

Accepted Answer

It defines the maximum airborne concentration a worker can be exposed to for a 15-minute period without adverse effects

Answer

TLV-STEL is the ACGIH exposure limit for short-duration (15-min) peak exposures that should not be exceeded.

BACE - Biotechnician Assistant Credentialing Exam Practice Test

BACE - Biotechnician Assistant Credentialing Exam Practice Test

BACE Laboratory Safety and Regulations 2