EDAIC Airway Management 3

Question 1

The gold standard method for confirming correct endotracheal tube placement after intubation is:

Accepted Answer

Continuous waveform capnography detecting exhaled CO₂

Answer

Bilateral chest auscultation for equal breath sounds

Answer

Observation of bilateral symmetric chest rise

Answer

Fiberoptic visualization of the tube passing through the vocal cords

Question 2

High-flow nasal oxygen (HFNO) extends safe apnea time primarily by:

Accepted Answer

Flushing anatomical dead space with oxygen and generating a small CPAP effect

Answer

Delivering active positive pressure ventilation through the nasopharynx

Answer

Stimulating peripheral chemoreceptors to maintain respiratory drive

Answer

Humidifying oxygen to prevent airway mucosal desiccation

Question 3

Surgical tracheostomy is typically performed at which level of the trachea?

Accepted Answer

Between the 2nd and 4th tracheal rings

Answer

Between the 1st and 2nd tracheal rings

Answer

Between the 4th and 6th tracheal rings

Answer

Immediately below the cricoid cartilage at ring 1

Question 4

The most important step after inserting a double-lumen endobronchial tube (DLT) is:

Accepted Answer

Fiberoptic bronchoscopic confirmation of correct tube position

Answer

Immediate clamping of the bronchial lumen to confirm lung separation

Answer

Chest radiograph to verify tube tip location

Answer

Auscultation alone to confirm bilateral ventilation

Question 5

The most common immediate complication of percutaneous dilatational tracheostomy (PDT) is:

Accepted Answer

Bleeding at the insertion site

Answer

Tracheoesophageal fistula

Answer

Tracheal stenosis requiring surgical repair

Answer

Accidental decannulation during the procedure

Question 6

In children under 8 years old, the narrowest part of the airway (relevant to endotracheal tube sizing) is located at the:

Accepted Answer

Subglottic region at the level of the cricoid cartilage

Answer

Glottis, as in adults

Answer

Mid-trachea at the level of the carina

Answer

Supraglottic region at the level of the epiglottis

Question 7

During a sedated airway procedure, which monitoring combination best detects hypoventilation before hypoxemia develops?

Accepted Answer

Nasal capnography combined with pulse oximetry

Answer

Pulse oximetry alone with continuous visual observation

Answer

End-tidal CO₂ measured via a sampling port on the endotracheal tube

Answer

Arterial blood gas analysis every 5 minutes