A PA cranial projection with poor positioning demonstrates the petrous ridges too superior to the supraorbital margins. How was the patient positioned for such a projection to be obtained?
1. The patient's chin was inadequately tucked.
2. The OML was not positioned perpendicular to the IR.
3. The patient's face was rotated toward the right side.
4. The patient's head was tilted.
a. 1 and 2 only
b. 2 only
c. 3 only
d. 2 and 4 only
A
Health Professions
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When using a variable kVp exposure technique system,
a. a mAs value is identified for each body part and thickness. b. small changes in patient thickness can be accommodated with small changes in mAs. c. kVp varies as a function of patient thickness. d. all of the above
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Dialysis is the use of an external ________ to remove toxins and maintain water balance in cases of acute or chronic renal failure.
A. neutralizer B. filter C. bladder D. oscillator
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