RTBC EXAM PREP COMPLETE QUESTIONS AND ANSWERS 100% CORRECT
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Module
RTBC
Institution
RTBC
RTBC EXAM PREP COMPLETE QUESTIONS AND ANSWERS 100% CORRECTRTBC EXAM PREP COMPLETE QUESTIONS AND ANSWERS 100% CORRECTRTBC EXAM PREP COMPLETE QUESTIONS AND ANSWERS 100% CORRECT
What determines the quantity of electrons in the tube current? - ANSWER-Heating of the filament
-Heat of the filament pr...
RTBC EXAM PREP COMPLETE
QUESTIONS AND ANSWERS 100%
CORRECT
What determines the quantity of electrons in the tube current? - ANSWER-Heating of
the filament
-Heat of the filament produces the space charge effect and the thermionic cloud
-Hotter the filament, the more electrons will boil off
An "apple core" lesion is related to which pathology? - ANSWER-Colon cancer
-"apple core" or "napkin ring" describe the appearance of some types of cancer in the
large intestine
The ability to produce a high voltage electrical current in the x-ray tube is accomplished
through which of the following devices? - ANSWER-Transformers
-Step-up transformer converts low-voltage electricity to high voltage electricity
-Diodes help convert AC to DC
-Resistors control the flow of electricity
What imaging study of the urinary system is a structural study rather than a functional
study? - ANSWER-Retrograde pyelogram
-Functional studies demonstrate both anatomy and physiologic workings of an organ,
such as how kidneys filter contrast or the bladder empties
-Structural studies such as retrograde pyelogram demonstrate only the anatomy of the
urinary system
What two devices can collect and convert light into an electrical signal? - ANSWER-
CCD and photodiode
-Indirect DR IRs convert x-ray photons to light using scintillator
-TFTs collect electrical signals
What chamber of the heart is responsible for pumping blood to the lungs? - ANSWER-
Right ventricle
-Systemic blood returned to the right atrium, passes through the right atrioventricular
(tricuspid) valve, and into right ventricle
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