CRNA CRNA Airway Management

Question 1

According to the ASA Difficult Airway Algorithm, what is the first step after recognizing a 'cannot intubate, cannot oxygenate' (CICO) emergency?

Accepted Answer

Emergency surgical airway (cricothyrotomy)

Answer

Attempt blind nasal intubation

Answer

Administer additional muscle relaxant

Answer

Insert a supraglottic airway device

Question 2

Which Cormack-Lehane grade indicates the most difficult direct laryngoscopy, with only the posterior commissure or no laryngeal structures visible?

Accepted Answer

Grade III–IV

Answer

Grade I

Answer

Grade II

Answer

Grade IIa

Question 3

What is the recommended preoxygenation target end-tidal O2 (EtO2) percentage before rapid sequence intubation (RSI)?

Accepted Answer

≥90%

Answer

≥70%

Answer

≥50%

Answer

≥80%

Question 4

A patient with epiglottitis requires intubation. Which approach is preferred to avoid complete airway obstruction?

Accepted Answer

Awake fiberoptic intubation

Answer

Rapid sequence induction

Answer

Blind nasotracheal intubation

Answer

Direct laryngoscopy after inhalation induction

Question 5

What is the primary advantage of video laryngoscopy over direct laryngoscopy for difficult airway management?

Accepted Answer

Improved glottic visualization without requiring line-of-sight alignment

Answer

Faster intubation time in all cases

Answer

Elimination of the need for a stylet

Answer

Reduced risk of dental injury in all patients

Question 6

Which finding on capnography most reliably confirms correct endotracheal tube placement?

Accepted Answer

Persistent end-tidal CO2 waveform over multiple breaths

Answer

Positive mist in the ETT

Answer

Bilateral chest rise during ventilation

Answer

Oxygen saturation above 95%