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RADIOGRAPHIC POSITIONING CHAPTER #2 EXAM QUESTIONS AND ANSWERS
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RADIOGRAPHIC POSITIONING CHAPTER #2 EXAM QUESTIONS AND ANSWERS
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RADIOGRAPHIC POSITIONINGCHAPTER #2 EXAM QUESTIONS AND
ANSWERS
Body Habitus - Answer-hypersthenic- increased lungs wider diaphragm higher
sthenic- normal
asthenic- below tall and skinny. portrait long,low lungs
hyposthenic- decreased
when in doubt, lungs are usually wider than longer
Expiration/Inspiration - Answer-increases in three dimensions during inspiration:
vertical, transverse, AP diameter
Degree of Inspiration needed on radiograph - Answer-count posterior ribs
minimum of 10 ribs
need costophrenic angle and cardiophrenic angle
patient prep - Answer-removal of opaque objects
clothing artifacts (buttons)
long hair fasteners
O2 lines and EKG leads not in lung fields
glasses rings necklaces etc
radiation protection - Answer-limit repeat exposures, collimation, gonadal shielding,
backscatter protection (bouncing off board and coming back on patient. do not need any
light below bellybutton
technical factors - Answer-High kV (110-125)
Grid
High mA, short exposure time (want high mA so machine shuts off faster
phototime on a chest
patient identification - Answer-Patient ID, anatomical side marker, do not need upright
arrow because Dr. assumes they are erect unless noted otherwise.
PACS - Answer-picture archive communication system
breathing instructions - Answer-inspiration. clear concise instructions, exposure upon
second full breth. 10 posterior ribs above diaphragm is ideal. second breath because
they have instructions how to do it and will slow down heart (less involuntary motion)
Pig-O stat - Answer-holds child still during xray..want them to cry so you can see
inspiration
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