#1
Which of the following is an example of a sterilization method?
Handwashing with soap and water
Boiling water for 10 minutes
Autoclaving at 121°C for 15 minutes
Wiping surfaces with disinfectant wipes
#2
What is the primary goal of disinfection?
To remove all microorganisms
To reduce the number of pathogenic microorganisms to a safe level
To sterilize the environment completely
To prevent microbial growth
#3
Which of the following is an example of a high-level disinfectant?
Isopropyl alcohol
Chlorine bleach
Hydrogen peroxide
Glutaraldehyde
#4
What is the purpose of the Hazard Communication Standard (HCS)?
To regulate the production of hazardous chemicals
To provide guidance on chemical storage
To ensure that information about chemical hazards is transmitted to employers and employees
To control chemical usage in industrial settings
#5
Which of the following methods is NOT suitable for sterilizing heat-sensitive instruments?
Autoclaving
Dry heat sterilization
Ethylene oxide gas sterilization
Boiling
#6
Which chemical hazard classification indicates substances that may cause immediate and serious adverse effects, such as death or severe injury, when exposure occurs?
Category 1
Category 2
Category 3
Category 4
#7
What does LD50 stand for in toxicology?
Lethal Dose for 50%
Lethal Dosage 50
Lethal Determination at 50
Life Duration at 50
#8
Which chemical hazard classification indicates substances that may cause mild adverse effects, such as skin irritation or nausea?
Category 1
Category 2
Category 3
Category 4
#9
What is the purpose of biological indicators in sterilization processes?
To measure temperature
To monitor humidity levels
To indicate the presence of living microorganisms
To regulate pressure
#10
Which chemical hazard classification indicates substances that may cause reversible adverse effects or pose a hazard if swallowed, inhaled, or exposed to the skin?
Category 1
Category 2
Category 3
Category 4
#11
Which of the following is NOT a method of chemical sterilization?
Ethylene oxide gas
Hydrogen peroxide plasma
Glutaraldehyde immersion
Boiling water
#12
Which of the following is a characteristic of an ideal disinfectant?
Non-toxic to humans
Biodegradable
Non-corrosive to surfaces
Rapid evaporation rate
#13
Which of the following is a disadvantage of chemical sterilization methods compared to heat-based methods?
Longer processing time
High cost of equipment
Inability to penetrate certain materials
Potential damage to instruments
#14
Which of the following is an example of a chemical indicator used in sterilization processes?
Geobacillus stearothermophilus
Ethylene oxide gas
Autoclave tape
Bowie-Dick test
#15
Which of the following is a characteristic of a high-level disinfectant?
Effective against bacterial spores
Requires short contact time
Non-corrosive to metals
Limited spectrum of activity