The most appropriate method for opening the airway of an awake patient with a fractured man-dible is which of the following?
a. Chin lift c. Guedel airway
b. Jaw thrust d. Sniffing position
Q. 2 Which of the following statements is true concerning the sniffing position?
a. It is the best position for oral intubation.
b. It is indicated when a patient is vomiting.
c. It is used for an unstable cervical spine injury.
d. It is contraindicated for temporomandibu-lar joint disease.
Q. 3 Elevating the head and extending the neck describes which of the following?
a. The position for transtracheal invasive airway insertion
b. The position for a nasopharyngeal airway insertion
c. A maneuver called the jaw thrust or chin lift
d. A maneuver called the sniffing position
Q. 4 A patient is being administered supplemental oxygen with a 40 air-entrainment mask being powered with a flow of 6 L/min. The manufacturer recommends a flow of 4 L/min. Which of the following will occur with this change?
1. There will be an increase in the delivered FIO2.
2. There will be an increase in the total flow.
3. There will be a decrease in the total flow.
4. There will be no change in the FIO2.
a. 1, 2 c. 3, 4
b. 2, 4 d. 1, 3
Q. 5 A patient is receiving supplemental oxygen at a flow of 4 L/min. Assessment reveals that there is clouding of the mask. What step should be taken to resolve this situation?
a. Change to a nasal cannula at 2 L/min.
b. Increase the flow to 5 L/min.
c. Change to a 50 air-entrainment mask.
d. Increase the flow to 10 L/min.
Q. 6 A 45-year-old man had a deep sea diving accident recently and developed air emboli. Which type of therapy should the therapist recommend at this time?
a. Nitric oxide therapy c. Hyperbaric therapy
b. Heliox therapy d. Aerosol therapy
Q. 7 The partial pressure of alveolar oxygen (PAO2) when the atmospheric pressure is 3 atmospheric pressure (atm), the PACO2 is 40 mm Hg, and the FIO2 is 0.80 is _____ mm Hg.
a. 2280 c. 1736
b. 1784 d. 1500
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