with complete solutions21
Which of the following is an indication for a retrograde urethrography? - ANSWERS-urethral
obstruction
The collimator misalignment must be within __% of the SID used. - ANSWERS-2
as anode heel effect increases, receptor exposure - ANSWERS-decreases
As the angle of the anode decreases, what happens to the heat loading capacity of the x-ray
tube? - ANSWERS-decreases
For an arthrogram, a combination of which imaging modalities is most commonly utilized? -
ANSWERS-Fluorscopy and MRI
The fill factor of the direct radiography (DR) image receptor is the - ANSWERS-sensitive portion
of the detector element compared to the non sensitive portion
walls that are secondary barriers should be - ANSWERS-0.8 mm of lead thickness and be 7
meters tall
walls that are primary barriers should be - ANSWERS-1.6 mm of lead thickness and be 7 meters
tall
which of the following positions would result in the least OID when the right lumbar
zygapophyseal joints are the area of interest? - ANSWERS-RPO
,Epilation occurs at what dose - ANSWERS-3000 mGy
What is cirrhosis of the liver? - ANSWERS-chronic destruction of liver cells
what is cirrhosis of the liver caused by - ANSWERS-alcohol
The distal interphalangeal joint and tibiotalar are classified as - ANSWERS-hinge joints
the intermetatarsal, tarsometatarsal and proximal tibiofibular are classified as - ANSWERS-
gliding joints
as DEL decreases spatial resolution - ANSWERS-increases
Which dose measurement is used to predict stochastic effects such as cancer? - ANSWERS-
effective dose
Where is the technique chart of anatomically programmed technique systems stored? -
ANSWERS-in the microprocessor of the control unit
what accelerates electrons in the x ray tube? - ANSWERS-application of electrons
what is the most common cause of off level grid? - ANSWERS-grid misalignment due to uneven
patient weight distribution
The actual focal spot is controlled by the? - ANSWERS-length of the filament
, the actual focal spot is ____ than the effective focal spot - ANSWERS-larger
Increasing filtration will - ANSWERS-decreases patient dose, decreases contrast and decreases
receptor exposure
The ability of an x-ray photon to penetrate matter is described as the: - ANSWERS-Quality
Intensity - ANSWERS-the quantity of photons within the x-ray beam
Attenuation - ANSWERS-described as the absorption of photons as they pass through the matter
the hard palate is formed by the - ANSWERS-Maxillary bone and palatine bone
what type of light erases the PSP? - ANSWERS-white light
What are two fluorscopic procedures require NPO for 8-12 hours - ANSWERS-LGI and SBFT
TFT's function - ANSWERS-to collect electrical charge
the scintillation layer - ANSWERS-converts x-ray photons in to light
analog to digital converter - ANSWERS-converts electrical charges to digital signal
What affects receptor exposure? - ANSWERS-kVp, mAs, grids, and distance
What articulates with the capitulum? - ANSWERS-head of radius