NBSTSA Trivia 4

Question 1

Which sterilization method uses ethylene oxide (EtO)?

Accepted Answer

Low-temperature gas sterilization

Answer

Ethylene oxide is a low-temperature gas sterilant used for heat-sensitive instruments that cannot withstand steam autoclave temperatures.

Question 2

Which instrument is designed specifically for cutting bone during orthopedic surgery?

Accepted Answer

Rongeur

Answer

A rongeur is a heavy, hinged instrument with cupped jaws used to bite away bone tissue.

Question 3

What term describes the transfer of microorganisms from a contaminated source to a sterile area via contact?

Accepted Answer

Direct contact contamination

Answer

Direct contact contamination occurs when a sterile item touches a non-sterile surface, person, or object.

Question 4

Which nerve block technique involves injecting anesthetic around the brachial plexus for upper extremity surgery?

Accepted Answer

Axillary block

Answer

An axillary block targets the brachial plexus in the axilla to anesthetize the entire arm below the shoulder.

Question 5

What is the purpose of a fenestrated drape in the surgical field?

Accepted Answer

To create a sterile barrier with an opening over the operative site

Answer

A fenestrated drape has a cut-out (fenestration) that exposes only the operative site while maintaining sterility around it.

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