Review #5 Practice

A method of reducing poor spatial resolution due to utilization of a large focal spot, would be to:
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A method of reducing poor spatial resolution due to utilization of a large focal spot, would be to:
increase the source to image distance
A 16:1 grid is substituted for a 6:1 grid. (6 to 16) With all other factors remaining the same, the resultant effect would be:
increased absorption of scattered radiation and decreased receptor exposure
A three-phase timer can be tested for accuracy using a synchronous spinning top. The resulting image looks like a
solid arc, with the angle (in degrees) representative of the exposure time. 3-phase = arc; single phase = dots
Which of the following should be utilized to prevent grid cutoff when utilizing a parallel grid
Long SID & small field size
What includes complete sterilization of equipment and the appropriate skin preparation
surgical asepsis
The flat portion of the maxilla that forms the anterior portion of the hard palate is called the:
Palatine Process
In order to best demonstrate the lumbosacral junction with the patient supine, the central ray should be directed:
30-35 degrees cephalad
The EFFICIENCY of x-ray production is ______________ the tube current
not affected by
Which of the following positions or projections would demonstrate the lateral malleolus free of superimposition?
45 degree internal rotation
Which of the following are valid criteria for a lateral projection of the forearm
Superimposition by the radial head over the coronoid process
&
the radial tuberosity should face anteriorly
Which of the following is most likely NOT a reaction to the intravenous injection of aqueous iodine contrast mediahypertensionShock is indicated when the diastolic pressure isless than 50 mm Hg