Review Questions Correct
Answers (A Pass) 2025
Update
a graph that has several peaks and valleys representing pixel values - Answer-
✔✔histogram
agents that appear white on the finished image - Answer- ✔✔radiopaque
agents that appear black on the finished image - Answer- ✔✔radiolucent
most of the occupational exposure received by radiographer is received during -
Answer- ✔✔fluoro, portables
the knee is formed by the - Answer- ✔✔proximal tibia, patella, distal femur
ulnar flexion of the wrist helps to - Answer- ✔✔overcome superimposition of the
scaphoid
inspiration of a chest x-ray will demonstrate ____ pairs of posterior ribs - Answer- ✔✔10
what is demonstrated in the AP oblique elbow position - Answer- ✔✔radial head and
neck free of superimposition
examples of additive pathologic conditions - Answer- ✔✔ascites, pneumonia,
atelectasis
examples of destructive pathologic conditions - Answer- ✔✔osteoporosis, emphysema,
osteomalacia
if it desired to measure ESE, a ___________ is used - Answer- ✔✔small ionization
chamber
the gallbladder and stomach are higher and more lateral and the large bowel more
peripheral in the ____ patient - Answer- ✔✔hyperstenic
, the anode heel effect becomes more pronounced as - Answer- ✔✔SID decreases, IR
size increases, target angle decreases
changes AC to unidirectional current - Answer- ✔✔rectifier
used for focal spot evaluation - Answer- ✔✔star pattern
advantages of high frequency generators - Answer- ✔✔compact, constant potential
(decrease pt. dose)
sunrise view is used to demonstrate - Answer- ✔✔vertical fractures of patella
flat panel detectors used in DR are often made of - Answer- ✔✔amorphous selenium
coated TFT array
performed to evaluate timer accuracy or rectifier efficiency in single phase equipment -
Answer- ✔✔spinning top test
makes up 15% of the primary beam - Answer- ✔✔characteristic radiation
responsible for most of the x-ray photons produced at the tungsten target - Answer-
✔✔Brems radiation
the SC are formed by the - Answer- ✔✔medial (sternal) extremities of the clavicles and
clavicular notches of the manubruim
the first ____ pairs of ribs are true ribs - Answer- ✔✔7
Grashey method - Answer- ✔✔patient is rotated 35-45 degrees toward the affected side
change in window level affects - Answer- ✔✔image brightness (density)
single phase current has ___% voltage drop - Answer- ✔✔100
three-phase, six pulse has about ___% voltage drop - Answer- ✔✔13%
high frequency has ____% voltage - Answer- ✔✔less than 1%
lumbar puncture is performed at the level of - Answer- ✔✔L3-L4
Left colic flexure "open" - Answer- ✔✔RPO/LAO
collapsed of airless lung - Answer- ✔✔atelactasis