An optimally positioned lateral cervical vertebrae projection demonstrates all the following except
a. no more than 0.25 inch (0.63 cm) of separation between the right and left side zygapophyseal joints.
b. superimposition of the anterior and posterior aspects of the right and left side ar-ticular pillars.
c. the posterior arch of C1 and the spinous process of C2 in profile without posterior occiput superimposition.
d. open intervertebral disk spaces.
A
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A physician wants a stable FiO2 of 0.5 for a newborn infant with severe hypoxemia. Which of the following systems would you select?
a. O2 hood with blender and heated humidi-fier b. Pediatric ("croup") tent with O2 input of 8 L/min c. O2 hood with blender and unheated hu-midifier d. Infant incubator with O2 input of 10 L/min