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CNOR Exam 2026–2027: Actual Exam with 400 Practice Questions & Correct Detailed Answers – Certified Nurse Operating Room (Perioperative Nursing / CCI CNOR Certification)

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2025/2026

This comprehensive 2026‑2027 document contains the actual CNOR exam with 400 practice questions and correct detailed answers, verified and graded A+. It is designed for perioperative nurses, surgical technologists, and nursing students preparing for the CCI CNOR certification exam, CNOR recertification, or operating room competency assessments. Content covers every essential domain including: sterilization and Spaulding classification – critical (must be sterile – instruments, catheters), semi‑critical (high‑level disinfection – endoscopes), non‑critical (low‑level disinfection – BP cuffs, linens); sterilization methods – steam sterilization (pre‑vacuum vs gravity displacement, cycles, drying, chemical indicators class 1‑6, biological indicators), immediate‑use steam sterilization (formerly flash), glutaraldehyde, ethylene oxide (human carcinogen, banned by 2030), low‑temperature hydrogen peroxide plasma (Sterrad, V‑PRO), peracetic acid (rinsed 4x), ozone, dry heat; sterile processing – decontamination (negative pressure, lower temp), processing (positive pressure, higher temp), enzymatic agents, biofilm, ultrasonic cleaning, instrument containment device weight ≤25 lbs, peel pouch orientation, endoscope cleaning and storage (leak testing, drying cabinet, cultures annually); patient positioning – supine (floating heels), prone (chest rolls lateral, arm boards lower than table), lateral (bottom leg flexed, kidney bar at 12th rib), lithotomy (stirrups even, legs raised/lowered together, avoid arm tucking), Trendelenburg (respiratory compromise, increased ICP), sitting position (risk of venous air embolism); nerve injuries – peroneal (footdrop), obturator (inner thigh/groin pain), sciatic, brachial plexus (abduction 90°, bump under buttocks for robotic cases); surgical attire and aseptic technique – scrubs (hospital‑laundered, polypropylene), hand hygiene (alcohol‑based preferred, cool water for C. diff), nail length ≤2 mm, masks in restricted areas, double gloving (change outer glove every 90‑150 minutes), gowning and gloving (closed method), sterile field contamination (strike‑through, covering during delays), event‑related sterility; wound classification – Class 1 clean (5% infection), Class 2 clean‑contaminated (8‑11%), Class 3 contaminated (15‑20%, acute appendicitis), Class 4 dirty/infected (27‑40%, ruptured appendix, abscess); wound healing phases – inflammatory (0‑3 days), proliferation (4‑24 days, need albumin 3.5‑5), remodeling (24 days‑1 year); closure types – primary, secondary (granulation), tertiary (delayed primary); anesthesia and medications – depolarizing muscle relaxant succinylcholine (fasciculations, malignant hyperthermia trigger), non‑depolarizing (reversal with anticholinesterases), local anesthetics (esters vs amides, LAST treatment with 20% lipid emulsion), epinephrine in local for vasoconstriction, benzodiazepines (versed, valium) reversal with flumazenil, opioid reversal with naloxone, malignant hyperthermia (dantrolene 2.5 mg/kg, sterile water, trigger agents: succinylcholine and volatile anesthetics except nitrous), ASA classification (1‑6), stages of anesthesia (1‑4), post‑op shivering increases O2 consumption 400%, hypothermia (96.8°F); patient safety – electrical cautery (monopolar, bipolar, grounding pad on largest muscle mass closest to site, never over warming blanket, burns from high current/small contact area), laser safety (laser safety officer, nominal hazard zone, fire risk assessment, laser‑resistant ETT with methylene blue saline cuff, FiO2 30%), pneumatic tourniquet (limb occlusion pressure, esmarch contraindicated with DVT/infection, maximum 90‑150 minutes, reperfusion 10‑15 minutes, nerve damage most common injury), fire safety (RACE, P.A.S.S., water extinguisher for Type A, CO2 for B/C, halon no longer used); legal and ethical issues – informed consent (patient competent, surgeon explains risks, nurse witnesses, emergency implied consent), assault/battery (surgery without consent), false imprisonment, negligence (4 D’s), malpractice, ANA code of ethics (autonomy, beneficence, nonmaleficence, justice, veracity, fidelity); specimen handling – pathology (tissue), cytology (fluid), microbiology (culture), bullet in dry plastic cup, keep on person until handed to law enforcement; transfusion and blood products – Jehovah’s Witness (autotransfusion permitted), emergency O‑negative blood, autologous bone storage; lab values – sodium 135‑145, potassium 3.5‑5, calcium 8.5‑10.5, ionized calcium 4.5‑5.6, magnesium 1.5‑2.5, PT 11‑12.5 sec, PTT 30‑40 sec, INR, troponin, CK‑MB; acid‑base interpretation – ROME (respiratory opposite, metabolic equal), normal pH 7.35‑7.45, CO2 35‑45, HCO3 22‑26; emergency conditions – DIC (prolonged PT/PTT, low fibrinogen, low platelets), venous air embolism (Durant’s left lateral position), malignant hyperthermia, cardiac arrest (OMI – oxygenation, monitors, IV), SVT (adenosine), bradycardia (atropine, dopamine, pacer), V‑tach/V‑fib (defibrillation, epinephrine, amiodarone); pediatric considerations – infant short trachea, toddler separation anxiety, preschooler fear of mutilation, school‑age helper, adolescent body image; end‑of‑procedure counts – incorrect count requires entire blade found, surgeon refusal documented, X‑ray may be ordered; infection control – MDROs (enhanced cleaning), C. diff (bleach), prion disease (CJD – sodium hypochlorite 15 min contact, instruments soak 60 min); documentation – no trailing/leading zeros, no predocumenting, Aldrete score (≥9 for discharge). Each question includes the correct answer with detailed rationales based on AORN, CCI, and perioperative standards. Ideal for CNOR certification candidates, perioperative nurses, surgical services educators, and operating room staff. Updated for 2026‑2027.

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Voorbeeld van de inhoud

1|Page



CNOR EXAM AND PRACTICE
QUESTIONS 2026-2027 ACTUAL EXAM
400 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+



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 - >>CORRECT ANSWER>> 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:

,2|Page




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 -
>>CORRECT ANSWER>> b

A new employee unknowingly dispensed an
unsterile solution to the sterile field. The following
day, the supervisor learns of the incident. The
supervisor's first action would be to:

a. Initiate an incident report
b. Instruct the employee on the technique of reading
labels
c. Counsel the employee verbally
d. Notify the surgeon of the break in technique -
>>CORRECT ANSWER>> d

Due to an emergency, the perioperative nurse is
unable to conduct the sponge, sharps, and instrument
counts. At the conclusion of the surgery, the nurse
should:

,3|Page




a. Ask the surgeon to sign the count
b. Immediately notify the OR supervisor
c. Document the absence of counts
d. Refuse to sign the sponge count record -
>>CORRECT ANSWER>> c

The optimum patient position provides:

a. Access and exposure, maintains circulatory and
respiratory functions, and does not compromise
neuromuscular structures.
b. Optimum access and exposure to surgical site,
with no permanent compromise to neuromuscular
structures.
c. Access for the surgeon, does not compromise the
neuromuscular structures, and maintains an adequate
airway for the anesthetist.
d. Sustained circulatory and respiratory functions,
does not compromise neuromuscular structures, and
maintains body alignment. - >>CORRECT
ANSWER>> a

A patient who is 8 months pregnant is to undergo an
emergency laparotomy. In planning nursing care for

, 4|Page



this patient, the perioperative nurse should have
available a wedge cushion or pillow to place under
the patient's:

a. Knees
b. Left side
c. Right side
d. Shoulders - >>CORRECT ANSWER>> c

You're loading the sterilizer with trays and wrapped
towels. The correct configuration would be:
a. The towels are on the bottom shelf and the trays
on the top shelf
b. The towels are on the top shelf and the trays are
on the bottom shelf
c. The trays and towels go on the top shelf and leave
the bottom shelf empty
d. There is no specific configuration when there is a
mixed load of trays and wrapped textiles -
>>CORRECT ANSWER>> b

During the induction of anesthesia, the perioperative
nurse may notice fasciculation as a response to
which of the following depolarizing muscle
relaxants?

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Aantal pagina's
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