Safety & Infection Control Flashcards
7 cards from real CDC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Safety & Infection Control flashcards as text
What is the purpose of a biological indicator (spore test) when monitoring autoclave sterilization in the dental laboratory?
Answer: To verify that sterilization conditions were sufficient to kill the most resistant microorganisms
Biological indicators using highly resistant Geobacillus stearothermophilus spores provide the most reliable verification that the sterilization process was effective.
Which type of fire extinguisher is appropriate for a Class C (electrical) fire that may occur in a dental laboratory?
Answer: CO2 or dry chemical extinguisher rated for Class C fires
CO2 and dry chemical extinguishers rated for Class C fires are non-conductive and safe for electrical equipment fires without risk of electrocution.
Under OSHA's Bloodborne Pathogens Standard, which hepatitis B vaccination requirement applies to dental laboratory employees with occupational exposure?
Answer: Employer must offer the vaccine at no cost within 10 working days of assignment
OSHA requires employers to offer free hepatitis B vaccination within 10 working days of initial assignment to positions with occupational exposure risk.
What ergonomic hazard is most commonly associated with extended use of rotary instruments in ceramic finishing and polishing?
Answer: Carpal tunnel syndrome and other repetitive strain injuries
Prolonged use of rotary instruments with repetitive gripping and vibration exposure significantly increases risk of carpal tunnel syndrome and cumulative trauma disorders.
Which regulatory agency is responsible for approving and registering surface disinfectants used in dental laboratories in the United States?
Answer: EPA (Environmental Protection Agency)
The EPA registers and regulates disinfectants for environmental surface use, requiring proof of efficacy against specific organisms before approval.
What action should be taken if a dental laboratory receives a case without proper disinfection documentation from the dental office?
Answer: Return the case to the dental office for proper disinfection
Undocumented or undisinfected cases should be returned to the dental office; the lab must not be expected to compensate for missed chairside decontamination.
What is the role of the written Infection Control Policy in a dental laboratory setting?
Answer: It documents procedures to protect employees and prevent cross-contamination between clinical and lab environments
A written infection control policy establishes standardized protocols protecting employees and ensuring safe handling of clinical materials throughout the lab workflow.