Page 179 - Clinical Application of Mechanical Ventilation

Special Airways for Ventilation 145

5. Since an esophageal obturator airway (EOA) is inserted into the _______, the cuff at the distal end must
be _______ before providing manual ventilation.
A. tracheal, deflated C. esophagus, deflated
B. trachea, inflated D. esophagus, inflated

6. Since there are two ports on the mask of the _______, the manual resuscitation bag must be attached to
the ventilation port of this airway.
A. esophageal obturator airway C. esophageal gastric tube airway
B. laryngeal mask airway D. esophageal-tracheal combitube

7. The silicone-based laryngeal mask airway may be reused up to _______ times with proper handling and
_______.

A. 40, chemical sterilization C. 100, chemical sterilization
B. 40, steam autoclaving D. 100, steam autoclaving

8. Since the cushioned mask of a laryngeal mask airway (LMA) provides a seal over the _______, it is not
necessary for the LMA to enter the larynx or trachea.
A. tracheal opening C. esophageal opening
B. laryngeal opening D. vocal cords

9. Which of the following is not true concerning the laryngeal mask airway (LMA)?

A. LMA does not protect an airway from regurgitation and aspiration.
B. LMA is sterilized by steam autoclave.
C. Size 4 and size 5 LMAs are suitable for most adults.
D. LMA may withhold airway pressures up to 60 cm H O.
2
10. An esophageal-tracheal combitube (ETC) is inserted into the:
A. trachea. C. trachea or esophagus.
B. esophagus. D. esophagus or larynx.

11. Both lumens on the ETC can be used to provide ventilation. Lumen 1 is used when the tube enters the
_______ and lumen 2 is used when it is in the _______.
A. trachea, esophagus C. trachea, larynx
B. esophagus, trachea D. esophagus, larynx

12. Following blind intubation with an ETC, ventilation should be attempted initially through lumen 1 of
the ETC because:
A. an airway usually goes into the trachea during blind intubation.
B. an airway usually goes into the esophagus during blind intubation.
C. lumen 1 has a closed distal end.
D. lumen 2 has a closed distal end.

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