Which of the following inspired conditions should be maintained when delivering medical gases directly into the trachea through an endotracheal tube or a tracheotomy tube?
a. 50% relative humidity (RH) at 20° to 22° C
b. 100% RH at 37° to 42° C
c. 95% RH at 29° to 32° C
d. 100% RH at 32° to 35° C
ANS: D
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You are ventilating a cardiac arrest patient when he begins to vomit copious amounts of large pieces of undigested food. Which of the following would be most effective in clearing the airway?
A) Using large bore suction tubing without a tip or catheter attached B) Using a rigid pharyngeal suction tip C) Using a 14 French suction catheter D) Irrigating the mouth with sterile water to dilute the material before suctioning
The pulse pressure is the:
A) stroke volume times the heart rate. B) end-systolic volume minus the end-diastolic volume. C) systolic blood pressure minus the diastolic blood pressure. D) cardiac output times the systemic vascular resistance.
Where do most of the world's HIV-infected individuals (68%) live??
A) South Africa B) Sub-Saharan Africa C) United States D) South East Asia
An AP axial (Towne method) cranial projection with poor positioning demonstrates the dorsum sella superior to the foramen magnum. How was the positioning setup mispositioned for such a projection to be obtained?
1. The patient's face was rotated toward the left side. 2. The chin was not adequately tucked. 3. The OML was not aligned perpendicular to the IR. 4. The central ray was angled too caudally. a. 1 only b. 4 only c. 2 and 3 only d. 2, 3, and 4 only