A 65-year-old patient with an existing descending colostomy is undergoing an exploratory laparotomy for a suspected small bowel obstruction. The surgeon requests a full abdominal prep. How should the perioperative nurse manage the stoma during the skin preparation?

Cover the stoma with an impervious drape, prep the abdomen, and prep the stoma last.

Prep the stoma first with a dedicated sponge, then prep the surrounding abdominal skin.

Pack the stoma with sterile dry gauze, prep the abdomen, and leave the gauze intact.

Prep the entire abdomen and stoma simultaneously using a single chlorhexidine gluconate applicator device.

While setting up for a procedure, the scrub person notices organic debris on a retractor just handed to the surgeon right before it contacts the patient. What is the appropriate response?

Remove the retractor and change contaminated sterile gloves.

Wipe the retractor with a sterile saline sponge.

Flash sterilize the retractor for immediate reuse now.

Soak the retractor in an enzymatic cleaning solution.

A circulating RN is managing a complex orthopedic case and considers delegating the initial surgical count to a licensed practical nurse who is acting as the scrub person. Which principle governs this delegation decision?

The RN must perform the count concurrently with the LPN scrub person.

The LPN can perform the count independently without the RN being present.

The LPN is legally prohibited from participating in any surgical instrument counts.

The RN may delegate the entire counting process to the experienced LPN.

A male patient with an indwelling urinary catheter is being transferred to a Jackson table for a posterior spinal procedure. Which action is essential to prevent genitourinary injury in the prone position?

Ensure the genitalia hang freely and the catheter tubing routes without any compression.

Secure the catheter tubing tightly beneath the patient's thigh to prevent accidental dislodgement.

Place a rolled towel directly under the scrotum to elevate and support it.

Tape the catheter to the abdomen before turning to maintain a sterile environment.

A surgeon performing a laparoscopic appendectomy repeatedly activates the monopolar pencil before touching the target tissue. The active electrode is passed through an all-metal trocar. Which intervention best addresses the primary safety risk presented by this specific surgical technique?

Advise the surgeon to activate the electrode only upon direct tissue contact.

Request the surgeon to utilize a hybrid trocar to isolate the current.

Increase the generator wattage to minimize the required duration of tissue activation.

Apply a non-conductive plastic sleeve over the entire length of the metal trocar.

How long should I study for the test?

Plan for two to three months of consistent preparation. This gives you enough time to review all eight domains and complete multiple rounds of practice questions without burning out.

Which topics should I study first?

Start with Management of Intraoperative Activities: Patient Care and Safety. This section makes up 25% of the test. Mastering this domain early gives you a strong foundation for the rest of your review.

What is the second most important topic to cover?

Focus next on Infection Prevention and Control of the Environment, Instrumentation, and Supplies. This domain accounts for 16% of the test. Combined with intraoperative safety, these two areas cover nearly half of your assessment.

How many questions will I face?

You will answer 200 multiple-choice questions. Only 185 of these are scored. The remaining 15 are unscored pretest items mixed randomly throughout your session.

How much time do I have to finish?

You have exactly 3 hours and 45 minutes to complete all 200 items. This gives you slightly over one minute per question. Pace yourself during your study sessions to match this timing.

What is the best way to prepare for the question format?

Drill scenario-based questions daily. We offer 2200+ practice questions to help you get used to applying perioperative nursing concepts to realistic patient situations.

Do I need to memorize the exact passing score?

No. The scoring system is scaled based on difficulty. For the exact raw score needed to pass your specific test version, check the Competency & Credentialing Institute (CCI) official handbook.

How heavily is the pre- and postoperative assessment domain weighted?

Pre/Postoperative Patient Assessment and Diagnosis makes up 15% of your score. This is the third-largest domain, making it a critical part of your study schedule.

What about emergency situations and professional accountability?

Emergency Situations accounts for 10% of the test. Professional Accountability is the smallest section at just 6%. Review these areas toward the end of your study plan.

Where do I take the test?

You can test in person at a designated testing center or take it from home via a remote proctor. Choose the environment where you focus best.

How do I maintain my credential after I pass?

You must renew every five years. You can do this by retaking the test, earning 300 professional-activity points, or completing 125 contact hours. At least 75 of those hours must be specific to perioperative practice. Starting January 1, 2026, per-category point limits will be removed.

How to Study for and Pass the CNOR Exam

You can pass the certification by following a two- to three-month study plan that prioritizes high-weight domains like intraoperative patient care and infection prevention. Spend your time drilling scenario-based questions to build clinical reasoning and pacing skills.

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Written and reviewed by the LexPort exam-prep team, led by our Founder & Exam-Prep Lead. LexPort builds certification practice questions — this is exam-preparation material, not medical advice. Last reviewed July 2026.

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How long should I study for the test?: Plan for two to three months of consistent preparation. This gives you enough time to review all eight domains and complete multiple rounds of practice questions without burning out.
Which topics should I study first?: Start with Management of Intraoperative Activities: Patient Care and Safety. This section makes up 25% of the test. Mastering this domain early gives you a strong foundation for the rest of your review.
What is the second most important topic to cover?: Focus next on Infection Prevention and Control of the Environment, Instrumentation, and Supplies. This domain accounts for 16% of the test. Combined with intraoperative safety, these two areas cover nearly half of your assessment.
How many questions will I face?: You will answer 200 multiple-choice questions. Only 185 of these are scored. The remaining 15 are unscored pretest items mixed randomly throughout your session.
How much time do I have to finish?: You have exactly 3 hours and 45 minutes to complete all 200 items. This gives you slightly over one minute per question. Pace yourself during your study sessions to match this timing.
What is the best way to prepare for the question format?: Drill scenario-based questions daily. We offer 2200+ practice questions to help you get used to applying perioperative nursing concepts to realistic patient situations.
Do I need to memorize the exact passing score?: No. The scoring system is scaled based on difficulty. For the exact raw score needed to pass your specific test version, check the Competency & Credentialing Institute (CCI) official handbook.
How heavily is the pre- and postoperative assessment domain weighted?: Pre/Postoperative Patient Assessment and Diagnosis makes up 15% of your score. This is the third-largest domain, making it a critical part of your study schedule.
What about emergency situations and professional accountability?: Emergency Situations accounts for 10% of the test. Professional Accountability is the smallest section at just 6%. Review these areas toward the end of your study plan.
Where do I take the test?: You can test in person at a designated testing center or take it from home via a remote proctor. Choose the environment where you focus best.
How do I maintain my credential after I pass?: You must renew every five years. You can do this by retaking the test, earning 300 professional-activity points, or completing 125 contact hours. At least 75 of those hours must be specific to perioperative practice. Starting January 1, 2026, per-category point limits will be removed.

Start by finding your gaps

Every honest study plan starts with knowing what you don't know. Try three practice questions. The app has 2,200+, timed and scored.

Question 1

A patient sustains a traumatic thumb amputation and is being prepared for transferring the patient for microsurgical replantation. How should the perioperative nurse package the severed digit for transport?

▸ Why C is the answer

For replantation, amputated digits must be kept cool but protected from freezing. Option C is correct because wrapping the digit in saline-moistened gauze and placing it in a sealed plastic bag before placing it on ice prevents tissue damage. Option A is incorrect because submerging the tissue in liquid causes maceration. Option B is incorrect because direct contact with ice causes frostbite and cellular destruction, rendering the tissue non-viable. Option D is incorrect because formalin is a tissue fixative that permanently destroys the viability of the digit for replantation.

🔑 Key takeaway

Amputated digits for replantation should be wrapped in moist gauze, sealed in plastic, and kept cool.

Question 2

A patient requires a pacemaker insertion, and the perioperative nurse applies an alcohol-based skin prep over an area with dense hair on the chest. Which action is most appropriate for the nurse to take next to prevent a surgical fire?

▸ Why B is the answer

When using an alcohol-based skin prep on a patient with dense hair, the standard three-minute drying time is often insufficient. Hair traps the liquid, significantly delaying evaporation and creating a hidden fuel source. The perioperative nurse must physically verify that the solution is completely dry at the roots before allowing draping. Waiting exactly three minutes (Option A) is a common error because hair requires extended drying time. Blotting the excess solution (Option C) compromises the antimicrobial efficacy of the prep film and should be avoided. Applying an incise drape immediately (Option D) traps the flammable vapors against the skin, drastically increasing the risk of a surgical fire if an ignition source is introduced. Ensuring complete drying is the only safe and effective method to mitigate this specific fuel risk.

🔑 Key takeaway

Alcohol-based prep solutions trap in hair and require physical verification of complete drying to prevent fires.

Question 3

A patient arrives in the holding area for an elective procedure. The legal name on the consent form differs from the chosen name provided by the patient, and the patient exhibits visible anxiety during the verification process. How should the nurse proceed?

▸ Why A is the answer

Affirming a patient's chosen name reduces anxiety and builds trust. Safe patient identification requires two identifiers, such as a name and a medical record number or date of birth. The nurse can respectfully ask the patient to state their chosen name and date of birth while verifying the legal name silently against the consent form and wristband. Option B and Option D unnecessarily force the patient to hear or speak a "deadname," which can cause significant distress. Option C is impractical, as legal names are often required on official consent forms for billing and legal purposes until legally changed.

🔑 Key takeaway

Using a patient's chosen name alongside objective identifiers ensures both psychological safety and strict adherence to verification protocols.

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CNOR · Exam Simulator

A 65-year-old patient with an existing descending colostomy is undergoing an exploratory laparotomy for a susp…

A) Cover the stoma with an impervious drape

B) Prep the stoma first with a dedicated sp

C) Pack the stoma with sterile dry gauze, p

D) Prep the entire abdomen and stoma simult

Submit Answer

✓ CORRECT

A) Cover the stoma with an impervious drape, prep the

💡 KEY TAKEAWAY

Stomas must be prepped last or separately to prevent cross-contamination of the clean surgical site.

WHY

When prepping an abdomen with a stoma, the stoma is considered highly contaminated. The standard practice is to isolate the stoma by coverin…

Authoritative sources

CCI — Competency & Credentialing Institute (official CNOR information)