#1
Which of the following is a key principle of maintaining a sterile environment?
Frequent handwashing
Using dirty equipment
Ignoring personal protective equipment (PPE)
Leaving spills unattended
#2
What is the purpose of using an autoclave for sterilization?
To clean surgical instruments
To remove visible dirt from equipment
To kill microorganisms with high-pressure steam
To disinfect surfaces
#3
Why is it important for surgical personnel to wear masks in the operating room?
To prevent fogging of eyewear
To keep the face warm
To protect against airborne contaminants
To enhance communication
#4
What is the role of antiseptics in maintaining a sterile environment?
To disinfect environmental surfaces
To sterilize surgical instruments
To reduce the number of microorganisms on the skin
To neutralize chemical spills
#5
What is the purpose of using sterile water in healthcare settings?
To clean non-sterile surfaces
To irrigate wounds
To dilute cleaning solutions
To wash hands before procedures
#6
What is the recommended duration for surgical hand scrubbing?
15 seconds
1 minute
3 minutes
5 minutes
#7
Which of the following is NOT a method for sterilization?
Autoclaving
Chemical disinfection
Irradiation
Surface cleaning
#8
What is the purpose of using sterile drapes during a surgical procedure?
To keep the surgical team warm
To enhance visibility of the surgical field
To protect the patient from contamination
To absorb blood and fluids
#9
Which of the following is NOT a recommended practice for maintaining a sterile field?
Keeping doors to the operating room closed
Limiting traffic in and out of the operating room
Covering sterile tables and equipment when not in use
Leaving sterile supplies uncovered for convenience
#10
What is the primary purpose of creating a sterile environment in healthcare settings?
To reduce costs
To increase patient satisfaction
To prevent healthcare-associated infections (HAIs)
To improve staff morale
#11
Why is it important to ensure proper ventilation in areas where sterile procedures are performed?
To reduce energy consumption
To maintain comfort for personnel
To minimize the risk of airborne contamination
To decrease noise levels
#12
What is the purpose of laminar airflow in an operating room?
To create a comfortable environment
To minimize air particulate contamination
To increase humidity
To reduce noise pollution
#13
Which of the following is a Class II biological safety cabinet used for?
Handling hazardous materials
Maintaining sterile field during surgery
Storing sterile instruments
Waste disposal
#14
What is the purpose of using sterile gloves during a surgical procedure?
To keep the hands clean
To prevent transmission of microorganisms to the patient
To improve dexterity
To protect against chemical exposure
#15
Which of the following is a common method for sterilizing surgical instruments?
Boiling
Wiping with alcohol
Freezing
Ionizing radiation
#16
Which of the following statements regarding sterile technique is TRUE?
Sterile items may be placed on a non-sterile surface momentarily without compromising their sterility.
Sterile items should be stored in a dusty environment to prevent moisture buildup.
Sterile technique is only necessary during surgical procedures.
Sterile items should be handled with bare hands to maintain sensitivity.
#17
What is the purpose of using a HEPA filter in air filtration systems within healthcare facilities?
To regulate temperature
To remove odors
To trap small particles and microorganisms
To reduce humidity