CNOR CERTIFIED NURSE OPERATING
ROOM CERTIFICATION EXAM 2024-2025
WITH ACTUAL CORRECT QUESTIONS
AND VERIFIED DETAILED ANSWERS
|FREQUENTLY TESTED QUESTIONS AND
SOLUTIONS |ALREADY GRADED
A+|NEWEST |GUARANTEED PASS
|LATEST UPDATE
A prosthesis is contaminated during an orthopedic case and a suitable replacement is not immediately
available. How should this prosthesis be sterilized?
a. Immediate use sterilization @ 270° F for 3 minutes with a chemical indicator
b. Send the implant to sterile processing to be returned after the biological indicator has been read
c. Double-wrap and autoclave @ 270° F for 30 minutes with a chemical indicator
d. Immediate use sterilization @ 270° F for 10 minutes with both chemical and biological indicators
b
The bowie-dick test is used to determine
a. Proper functioning of the vacuum system
b. The concentration of ethylene oxide gas
c. Achievement of sterilization
d. Adequate temperature requirements
a
A chemical indicator included with surgical instruments processed in a gravity displacement steam
sterilizer indicates that the instruments were:
a. Exposed to the sterilizing conditions
b. Free of all surface bioburden
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,c. Exposed to the necessary vacuum pressure
d. Sterilization has been achieved
a
What type of processing does an item classified by the Spaulding System as critical require?
a. Sterilization
b. High level disinfection
c. Environmental Cleaning
d. Low level disinfection
a
When items are heat or moisture sensitive which of the following sterilization techniques may be used?
a. Dry Heat
b. Low Temperature hydrogen peroxide gas plasma
c. Glutaraldehyde
d. Saturated Steam under pressure
b
Tape located on the outside of a sterilized package is considered a class ____ chemical indicator
a. IV
b. II
c. I
d. V
c
Which of the following items is not considered critical according to the Spaulding Classification System?
a. Foley Catheter
b. Pneumatic tourniquet cuff
c. Acupuncture needles
d. IV catheter
b
When testing sterilizer efficacy, which sterilizers below must include a biological indicator with bacillus
atrophaeus spore?
a. Steam
b. Dry Heat
c. Hydrogen Peroxide Gas Plasma
d. Ozone
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,b
The leak testing of an endoscope should be performed:
a. after mechanical processing and before storage
b. on the surgical field, immediately after use
c. after handing off the field, prior to processing
d. before every use
c
Cleaning and decontamination of the endoscope begins
a. On the field throughout the procedure
b. After the patient leaves the OR
c. With an alcohol based solution
d. Immediately after use
a
Endoscopes must be stored...
a. In a drying cabinet
b. In a cabinet in the procedure room for easy accessibility
c. Vertically for no more than 5 days
d. In the hallway outside of the procedure room
a
Four laparoscopic tubal ligations have been scheduled for the same day. One of the four available
laparoscopes is contaminated during the preparation for the second tubal ligation. The laparoscopes will
not withstand steam sterilization. In this situation, what would be the most appropriate course of
action?
a. Soak the contaminated laparoscope in a high-level disinfectant for 20 min prior to use on the fourth
patient
b. Inform the surgeon of the potential compromise in the fourth patient's care and explore alternate
solutions
c. Inform the fourth patient that her tubal ligation can't be done due to the lack of sterile equipment
d. Sterilize the contaminated laparoscope using ethylene oxide, omit the aeration cycle, and rinse with
sterile water
b
Which type of sterilizer must be tested with a Bowie-Dick chemical indicator daily?
a. Gravity displacement
b. Dry heat
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, c. Dynamic Air Removal
d. Ozone
c
a
Which item according to the Spaulding Classification System is considered critical and therefore must be
sterile?
a. Laparoscope
b. Cystoscope
c. Bronchoscope
d. Colonoscope
b
The total weight of an instrument containment device, including contents, should not exceed
a. Weight is irrelevant as long as the integrator has changed
b. 25 pounds
c. 35 pounds
d. 40 pounds
dynamic air removal sterilizer
During a procedure under local anesthesia, the patient complains of circumoral numbness, blurred
vision, and dizziness. What should be the immediate action of the perioperative nurse monitoring this
patient?
a. Recheck the dose of local anesthesia given
b. Ensure an airway
c. Set the IV line to full flow
d. Call for 20% lipid emulsion to be brought to the room
b
The circulating nurse reports that the needle count is incorrect. The surgeon continues to close the
wound, stating, "I know it is not in the wound and I am not going to stop to look for it." The best plan of
action is to:
a. Accept the surgeon's response without comment and fill out an incident report
b. Inform the surgeon of hospital policy and document subsequent actions
c. Order X-rays regardless of the surgeon's wishes
d. Notify the OR supervisor and ask for advice
b
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