Radiology Flashcards
Exam study (34 cards)
The vest covers only what % of radiation
80%
Anode is
positive +
Cathode is
Negative -
gas
Black
fat
Dark grey
water/fluid
Light grey
bone
White
KVP is
penetrating power
mA is
quantity of X-rays
The collimator controls
The size of the X-ray beam that can improves quality
What is the cassette tray for?
manual processed films
too much scatter will result in
poor X-ray quality and greater radiation exposure to patient and technician
What is the main reason for scattered radiation?
High kVp and poor collimation
the grid sits between the
table and cassette trey
the two steps of foot pedal
whirring is anode rotating second is firing of x-rays
decreased kVP is
increased contrass
??? something about percent
10-15%
KVP is the only factor that controls
contras
Why do you need to measure the thickest part of the body?
because of the heel effect
What is the purpose of the calipers?
measure the thickest part of the body
What info do you obtain from the technique chart?
The setting to use for radiograph’s
Tube stand
Vertical side
Source-imagine distance indicator
X-ray tube
Cathode
Anode
Control Panel
Circuit breaker
settings for kVp, mA and time (sec)
remote exposure foot switch