Mobil Radiography Flashcards
APR
automatically programed radiography
anatomically programed radiography
three important technical factors to perform optimum mobil exams
grid
anode heel effect
SID
4 grid problems
off level
off center
off focus
upside down
at what point should you start using a grid CM
10-12 cm
grid conversion factor
mAs1/mAs2 = GCF1/GCF2
The higher the grid ratio the higher/lower the mAs
Higher
5:1 grid ratio
2
6:1 grid ratio
3
8:1 grid ratio
4
10:1 or 12:1 grid ratio
5
16:1 grid ratio
6
anode heel effect is more pronounced at
short SID
larger field sizes
small anode angles
does cathode or anode have higher average energy
cathode
thinner anatomy goes under which side of the beam (anode or cathode)
anode
the minimal distance from the x-ray tube people should be
6 feet or 2 m
where is the least amount of scatter radiation exposure at
right angle to the patient and primary beam
minimum source-to-skin distance is ______ according to
12 inches or 30 cm
federal safety regulations
two types of patients in isolation
those who we need to be protected from
those who need to be protected from us
fluid levels are best images with
affected side down
air levels are best seen with
unaffected side down
looking for fluid in the left side which side should be down
left
how long should a patient be in a lateral decubitus position before exposure
5 minuets
neonate
0-28 days
do you want a high or low grid ratio in mobile radiography
low
