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Chapter 8. Bag-Mask-Ventilation

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Functional upper airway obstruction in the unconscious patient involves soft tissue collapse between

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A. the tongue and the posterior pharynx

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B. the epiglottis and the posterior pharynx

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C. the soft palate and the posterior pharynx

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D. the tongue and the palate

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E. all of the above

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(E) All of the above. All of these obstructions may be relieved by a combination of placing an OPA and performing a jaw thrust.

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The most effective means of relieving a non-pathologic upper airway obstruction in the unconscious patient is

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A. placing the patient in sniffing position

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B. placing a nasopharyngeal airway

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C. simple extension of the neck

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D. performing a jaw thrust

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E. placing an extraglottic device

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(D) Performance of a jaw thrust has been shown to be the single most effective means of relieving a non-pathologic obstruction in the unconscious patient.

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Difficult mask-ventilation is associated with

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A. increasing age

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B. Mallampati II or III

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C. difficult laryngoscopy

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D. the presence of dentures

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E. A and C

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(E) Increasing age is a multifactorial risk factor likely representing a combination of decreased tissue elasticity, neck and jaw mobility, and lack of teeth. Difficult laryngoscopy is an important predictor for DMV.

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