Children as young as ____ old should recognize their parents' voice and look toward their parent if the parent calls the child's name.
A. two weeks
B. six weeks
C. two months
D. six months
Answer: D
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While observing a patient's breathing, you note that the depth and rate first increase, then de-crease, followed by a period of apnea. Which of the following are potential causes of this abnor-mality?
1. Central nervous system disorder 2. Congestive heart failure 3. Metabolic acidosis a. 1 and 2 only b. 2 and 3 only c. 1 and 3 only d. 1, 2, and 3
Which of the following is in the retina and senses color?
A. cones. B. rods. C. choroid. D. sclera.
The tympanic membrane is
A) slightly concave as viewed from the ear canal. B) slightly convex as viewed from the ear canal. C) relatively immobile. D) none of the above.
The conscientious radiographer can reduce the patient dose by at least ____ in most examinations by choosing appropriate exposure factors.
a. 100 percent b. 75 percent c. 50 percent d. 25 percent