CNOR Operating Room 5

Question 1

Which principle guides the placement of instruments on the sterile back table?

Accepted Answer

Items are arranged in order of use with frequently used items closest to the scrub person

Answer

Organizing instruments by order of use and placing frequently needed items closest to the scrub person promotes efficiency and reduces breaks in sterile technique.

Question 2

What is the function of the electrosurgical dispersive electrode (grounding pad)?

Accepted Answer

To provide a large surface area for the return of current to the ESU unit, preventing burns

Answer

The dispersive electrode spreads the returning current over a large body surface area, reducing current density and preventing burns at the return site.

Question 3

Which patient population is at highest risk for latex allergy in the perioperative setting?

Accepted Answer

Patients with multiple previous surgeries, spina bifida, or healthcare worker history

Answer

Repeated latex exposure through surgeries, spina bifida management, or occupational contact significantly increases sensitization risk.

Question 4

After a surgical sponge count discrepancy is identified at wound closure, what is the FIRST action the perioperative nurse should take?

Accepted Answer

Recount all sponges thoroughly with the scrub person

Answer

Recounting all sponges is the first step when a discrepancy is identified, followed by a search of the surgical field, and then imaging if still unresolved.

Question 5

Which sterilization method is preferred for heat-sensitive surgical instruments such as endoscopes?

Accepted Answer

Ethylene oxide (EtO) or hydrogen peroxide plasma sterilization

Answer

Low-temperature sterilization methods such as ethylene oxide and hydrogen peroxide gas plasma are used for heat- and moisture-sensitive items like flexible endoscopes.

CNOR - Certification Exam Practice Test

CNOR - Certification Exam Practice Test

CNOR Operating Room 5