NBSTSA MCQ 5

Question 1

Which sterilization method is most appropriate for heat-sensitive endoscopic equipment?

Accepted Answer

Ethylene oxide (EtO) gas

Answer

Ethylene oxide (EtO) sterilization uses low temperatures making it suitable for heat-sensitive items like flexible endoscopes and cameras.

Question 2

What is the standard duration for a traditional surgical hand scrub using a brush-stroke method?

Accepted Answer

3–5 minutes

Answer

A traditional surgical scrub typically lasts 3–5 minutes to adequately reduce transient and some resident microorganisms on hands and forearms.

Question 3

The 'right angle' (Mixter) clamp is most often used for which purpose?

Accepted Answer

Dissecting and passing suture or ties around structures

Answer

The right-angle (Mixter) clamp is designed to pass suture ligatures or ties around vessels, ducts, or other tubular structures.

Question 4

Which type of anesthesia involves injection of a local anesthetic into the subarachnoid space to produce regional blockade?

Accepted Answer

Spinal (intrathecal) anesthesia

Answer

Spinal anesthesia delivers local anesthetic directly into the cerebrospinal fluid in the subarachnoid space, producing dense lower-body blockade.

Question 5

A surgical technologist preparing a back table should arrange instruments in which manner?

Accepted Answer

In a systematic, logical order based on sequence of use

Answer

Instruments should be organized systematically by anticipated order of use to allow efficient, accurate passing throughout the procedure.

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