AORN Electrosurgical Safety 2

Question 1

What distinguishes bipolar electrosurgery from monopolar electrosurgery?

Accepted Answer

In bipolar electrosurgery, current travels only between the two tips of the instrument, eliminating need for a dispersive electrode

Answer

In bipolar electrosurgery, current passes only between the two tips of the forceps, confining the electrical effect to a very small area and eliminating the need for a dispersive electrode.

Question 2

What is 'capacitive coupling' in the context of laparoscopic electrosurgery?

Accepted Answer

Generation of an electrical charge in a nearby conductor without direct contact via an insulated active electrode

Answer

Capacitive coupling occurs when electrical energy is transferred from the insulated active electrode to a nearby conductor (e.g., a metal trocar) without direct contact, potentially causing unintended tissue burns.

Question 3

What is 'direct coupling' in laparoscopic electrosurgery, and why is it dangerous?

Accepted Answer

The active electrode accidentally makes contact with another metal instrument, conducting current to unintended tissue

Answer

Direct coupling occurs when the energized active electrode touches another metal instrument inside the body cavity, transferring current to that instrument and potentially burning adjacent tissue outside the surgeon's view.

Question 4

According to AORN standards, what is the recommended power setting principle for electrosurgical units?

Accepted Answer

Use the lowest effective power setting that achieves the desired tissue effect

Answer

AORN recommends using the lowest effective power setting to achieve the desired surgical effect, reducing risks of burns, smoke plume, and unintended tissue damage.

Question 5

Before applying the dispersive electrode, what patient assessment should the perioperative nurse perform?

Accepted Answer

Assess the patient's allergy history and inspect the intended placement site for hair, scar tissue, bony prominences, or compromised skin integrity

Answer

The perioperative nurse must inspect the dispersive electrode placement site for conditions (hair, scars, bony prominences, skin breakdown) that reduce contact area or conductivity and increase burn risk.

(AORN) Association of PeriOperative Registered Nurses Practice Test

(AORN) Association of PeriOperative Registered Nurses Practice Test

AORN Electrosurgical Safety 2