ABA Airway Management 2

Question 1

What is the primary advantage of video laryngoscopy compared to direct laryngoscopy?

Accepted Answer

Improved glottic visualization without requiring direct line-of-sight alignment

Answer

Video laryngoscopy uses a camera at the blade tip to display the glottis on a screen, allowing visualization without requiring the oral-pharyngeal-laryngeal axes to be aligned.

Question 2

The intubating laryngeal mask airway (ILMA/LMA Fastrach) is primarily designed to:

Accepted Answer

Facilitate blind or fiberoptic-assisted tracheal intubation through the device

Answer

The ILMA has a metal handle, modified airway tube, and elevated epiglottic elevating bar to align a tracheal tube with the glottis, enabling blind or guided intubation through it.

Question 3

During awake fiberoptic intubation, which topical anesthetic agent is most commonly used to anesthetize the airway mucosa?

Accepted Answer

Lidocaine 4%

Answer

Lidocaine 4% (or 2%) is the most widely used agent for topical airway anesthesia due to its rapid onset, adequate duration, and favorable safety profile when used in appropriate doses.

Question 4

The cricothyroid membrane is the preferred site for emergency surgical airway access for which of the following reasons?

Accepted Answer

It is relatively avascular and lies just below the skin surface

Answer

The cricothyroid membrane is preferred because it is superficial, relatively avascular, and easily identifiable between the thyroid and cricoid cartilages.

Question 5

Which of the following best describes the technique of retrograde intubation?

Accepted Answer

Advancing a guide wire cephalad through the cricothyroid membrane and out the mouth to railroad an endotracheal tube

Answer

Retrograde intubation involves puncturing the cricothyroid membrane, advancing a guide wire upward through the cords and out the mouth or nose, then railroading the endotracheal tube over the wire.

(ABA) American Board of Anesthesiology Practice Test

(ABA) American Board of Anesthesiology Practice Test

ABA Airway Management 2