NBCRNA Airway Management 3

Question 1

The intubating laryngeal mask airway (ILMA/Fastrach) differs from a standard LMA in that it is designed to:

Accepted Answer

Allow blind or fiberoptic-guided endotracheal tube placement through the LMA

Answer

The ILMA has a rigid curved shaft, epiglottic elevating bar, and detachable airway tube designed to guide a specially designed endotracheal tube through the LMA into the trachea.

Question 2

Tension pneumothorax during positive pressure ventilation is recognized by which clinical triad?

Accepted Answer

Hypotension, absent breath sounds, tracheal deviation away from affected side

Answer

Tension pneumothorax causes one-sided absent breath sounds, hypotension from obstructed venous return, and tracheal deviation away from the affected side as mediastinal structures shift.

Question 3

When managing a difficult pediatric airway, which sizing rule is used to estimate the appropriate uncuffed ETT internal diameter?

Accepted Answer

(Age/4) + 4

Answer

The formula (age in years ÷ 4) + 4 estimates the appropriate uncuffed endotracheal tube internal diameter in millimeters for pediatric patients.

Question 4

Postoperative hoarseness and sore throat after general anesthesia with endotracheal intubation is most commonly attributed to what?

Accepted Answer

Arytenoid cartilage trauma and vocal cord irritation from tube contact

Answer

Direct contact of the ETT cuff and tube against the posterior laryngeal structures, arytenoid cartilages, and vocal cords causes mucosal irritation and inflammation resulting in sore throat and hoarseness.

Question 5

Which technique is used to minimize the risk of accidental esophageal extubation during patient positioning after intubation?

Accepted Answer

Auscultation and capnography confirmation after every position change

Answer

Repositioning the patient can cause tube migration; confirming bilateral breath sounds and continuous capnography waveform after each position change detects displacement immediately.

NBCRNA - National Board of Certification and Recertification for Nurse Anesthetists Practice Test

NBCRNA - National Board of Certification and Recertification for Nurse Anesthetists Practice Test

NBCRNA Airway Management 3