CAA Anesthesia Techniques & Airway Management Flashcards
6 cards from real CAA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
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The LEMON mnemonic is used for predicting difficult direct laryngoscopy. What does the letter 'E' represent?
Answer: Evaluation of the 3-3-2 rule
In the LEMON airway assessment, 'E' stands for Evaluation of the 3-3-2 rule: ≥3 finger mouth opening, ≥3 finger thyromental distance, and ≥2 finger hyomental distance.
Which laryngoscope blade design is recommended for patients with a long, floppy epiglottis?
Answer: Miller straight blade
The Miller straight blade is used to directly lift the epiglottis, providing better exposure in patients with a long, floppy epiglottis that obscures the glottis.
During rapid sequence induction (RSI), cricoid pressure (Sellick maneuver) is applied to:
Answer: Compress the esophagus against the vertebral body to prevent passive regurgitation
Cricoid pressure compresses the esophagus between the cricoid cartilage and C6 vertebra to reduce the risk of passive regurgitation and pulmonary aspiration.
The recommended cuff pressure for a standard endotracheal tube is:
Answer: 20–30 cmH2O
ETT cuff pressure should be maintained at 20–30 cmH2O to seal the airway without compromising tracheal mucosal perfusion, which occurs above approximately 30 cmH2O.
Which feature distinguishes a laryngeal mask airway (LMA) from an endotracheal tube?
Answer: The LMA sits in the hypopharynx over the laryngeal inlet and does not pass through the vocal cords
An LMA is a supraglottic airway device that seats in the hypopharynx over the laryngeal inlet; it does not pass through the cords and provides less aspiration protection than an ETT.
Preoxygenation prior to induction of anesthesia is performed to:
Answer: Denitrogenate the functional residual capacity to extend the safe apnea time
Breathing 100% oxygen for 3–5 minutes replaces nitrogen in the FRC with oxygen, creating an oxygen reservoir that extends the safe apnea period during intubation.