CMLA REE CMLA Laboratory Safety & Procedures 4

Question 1

In the laboratory chain of custody for forensic or legal specimens, which step is most critical?

Accepted Answer

Continuous documentation of specimen handling from collection to reporting

Answer

Rapid processing to avoid degradation

Answer

Storing specimens at room temperature

Answer

Processing specimens in batches to save time

Question 2

Which personal protective equipment (PPE) is required when handling specimens with potential aerosol generation?

Accepted Answer

Gloves, lab coat, and face shield or splash goggles

Answer

Gloves only

Answer

Gloves and lab coat

Answer

No PPE required if working in a hood

Question 3

Which is the correct order of donning (putting on) PPE before entering a patient isolation room?

Accepted Answer

Gown → Mask/Respirator → Goggles → Gloves

Answer

Gloves → Gown → Mask → Goggles

Answer

Mask → Gloves → Gown → Goggles

Answer

Goggles → Gloves → Gown → Mask

Question 4

According to OSHA, which document must be readily accessible to laboratory employees for every hazardous chemical in the workplace?

Accepted Answer

Safety Data Sheet (SDS)

Answer

Procedure manual

Answer

Manufacturer's invoice

Answer

Laboratory director's approval form

Question 5

A newly received chemical reagent should be labeled with:

Accepted Answer

Expiration date and date received

Answer

Only the manufacturer's original label

Answer

The supervisor's initials only

Answer

Nothing additional if the original label is present

Question 6

What is the function of a fume hood's sash?

Accepted Answer

Acts as a physical barrier protecting the user from splashes and fumes

Answer

Increases airflow velocity into the hood

Answer

Filters chemical vapors before they enter the room

Answer

Maintains humidity inside the hood

Question 7

In the event of a needlestick injury involving a potentially HIV-positive source, post-exposure prophylaxis (PEP) should ideally be started within:

Accepted Answer

72 hours

Answer

1 week

Answer

24 hours

Answer

2 hours