CT Registry Review 1 questions with accurate detailed solutions

CT Registry Review 1 questions with accurate detailed
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solutions


CT is commonly referred to as all of the following names except:
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a) computed tomography
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b) computerized axial tomography
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c) CAT-scan
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d) digital subtraction angiography - ✔✔D
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What control does the operator have over the x-rays in a CT exam:
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a) the temperature and color of x-rays can be tuned
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b) the phase and frequency of the x-rays can be adjusted
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c) the energy level and the quantity of x-rays can be selected
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d) the volume and tone of the x-rays can be dialed - ✔✔C
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X-rays are produced whenever fast moving electrons collide with any form of matter
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because:

a) the electrons splits into two x-ray photons of equal energy upon impact with the matter
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b) the electron loses kinetic energy which is converted into the emission of an x-ray photon
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c) the electron converts the electron is collides with into an x-ray photon
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d) all of these - ✔✔B
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Which of the following statements is true:
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a) kV is the voltage potential between the tube cathode and anode while mA controls the
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filament current and, thus, ultimately the temperature of the cathode filament
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, b) kV controls the energy level of the x-ray photons and mA controls the number of x-ray
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photons emitted from the tube || || || ||




c) both a and b are correct
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d) none of these - ✔✔C
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Which of the following does not affect the quantity of x-rays that completely penetrates the
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patient:

a) the distance that the x-ray photons must travel on their course through the patient's body
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b) the molecular composition of the tissues through which the x-ray photons pass
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c) the type of detector material used
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d) both a and b - ✔✔C
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computers is: - ✔✔Magnetic optical disk (MOD) || || || || || ||




Which of the following statements is FALSE regarding the maxillary sinuses?
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1. They are the largest sinus cavities
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2. They lie above the roots of the upper teeth
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3. They drain through the infundibulum
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4. They lie lateral to but not within the maxillary bones - ✔✔They lie lateral to but not
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within the maxillary bones || || ||




The dorsal tendon group is responsible for: - ✔✔Extending the fingers and wrist
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X-rays are produced whenever fast moving electrons collide with any form of matter
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because: - ✔✔The moving electron converts the electron it collides with into an x-ray
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photon