#1
Which of the following is a key principle of maintaining a sterile environment?
Frequent handwashing
ExplanationHandwashing is crucial for preventing contamination.
#2
What is the purpose of using an autoclave for sterilization?
To kill microorganisms with high-pressure steam
ExplanationAutoclaves use steam to kill microorganisms.
#3
Why is it important for surgical personnel to wear masks in the operating room?
To protect against airborne contaminants
ExplanationMasks shield against airborne pathogens.
#4
What is the role of antiseptics in maintaining a sterile environment?
To reduce the number of microorganisms on the skin
ExplanationAntiseptics lower microbial presence on skin.
#5
What is the purpose of using sterile water in healthcare settings?
To irrigate wounds
ExplanationSterile water is used for wound irrigation to prevent infections.
#6
What is the recommended duration for surgical hand scrubbing?
3 minutes
ExplanationScrubbing for 3 minutes ensures thorough cleaning.
#7
Which of the following is NOT a method for sterilization?
Surface cleaning
ExplanationSurface cleaning doesn't sterilize objects.
#8
What is the purpose of using sterile drapes during a surgical procedure?
To protect the patient from contamination
ExplanationSterile drapes shield the patient from contaminants.
#9
Which of the following is NOT a recommended practice for maintaining a sterile field?
Leaving sterile supplies uncovered for convenience
ExplanationUncovering sterile supplies risks contamination.
#10
What is the primary purpose of creating a sterile environment in healthcare settings?
To prevent healthcare-associated infections (HAIs)
ExplanationSterile environments reduce the risk of HAIs.
#11
Why is it important to ensure proper ventilation in areas where sterile procedures are performed?
To minimize the risk of airborne contamination
ExplanationProper ventilation reduces airborne contaminants.
#12
What is the purpose of laminar airflow in an operating room?
To minimize air particulate contamination
ExplanationLaminar airflow reduces airborne particles.
#13
Which of the following is a Class II biological safety cabinet used for?
Handling hazardous materials
ExplanationClass II cabinets are for hazardous material manipulation.
#14
What is the purpose of using sterile gloves during a surgical procedure?
To prevent transmission of microorganisms to the patient
ExplanationSterile gloves prevent microbial transfer to patients.
#15
Which of the following is a common method for sterilizing surgical instruments?
Ionizing radiation
ExplanationIonizing radiation effectively sterilizes instruments.
#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.
ExplanationBrief contact with non-sterile surfaces is permissible.
#17
What is the purpose of using a HEPA filter in air filtration systems within healthcare facilities?
To trap small particles and microorganisms
ExplanationHEPA filters capture tiny particles and microbes.