NBSTSA Surgical Instrumentation and Equipment 2

Question 1

Electrosurgical units (ESU) use which principle to cut and coagulate tissue?

Accepted Answer

High-frequency alternating current to generate heat in tissue

Answer

ESUs use high-frequency alternating current (radiofrequency energy) that generates heat within tissue for cutting and coagulation without stimulating neuromuscular tissue.

Question 2

What is the correct placement of the dispersive electrode (patient return electrode) during monopolar electrosurgery?

Accepted Answer

On a well-vascularized, fleshy muscle mass away from implants and ECG leads

Answer

The dispersive electrode must be placed on a well-vascularized, large muscle mass to ensure uniform current dispersal and avoid burns; bony prominences reduce contact and increase risk.

Question 3

A powered surgical drill used in orthopedic surgery must be inspected before use for which of the following?

Accepted Answer

Battery charge, chuck integrity, and sterility of the handpiece and attachments

Answer

Before use, orthopedic power equipment must be checked for adequate power, secure chuck function, and confirmed sterility of the handpiece and all attachments.

Question 4

Which suction device is preferred for removing blood and fluid from a deep abdominal cavity?

Accepted Answer

Poole suction tip

Answer

The Poole suction tip has a large-bore outer guard with multiple perforations, making it ideal for evacuating large volumes of fluid from the peritoneal cavity.

Question 5

Metzenbaum scissors are most appropriately used for which of the following?

Accepted Answer

Delicate tissue dissection and cutting fine sutures

Answer

Metzenbaum scissors are lightweight, fine-tipped scissors intended for blunt dissection and cutting delicate tissue, not for heavy materials.

NBSTSA - National Board of Surgical Technology and Surgical Assisting Certified Practice Test

NBSTSA - National Board of Surgical Technology and Surgical Assisting Certified Practice Test

NBSTSA Surgical Instrumentation and Equipment 2