ANSWERS 100% CORRECT
Which of the following uses magnetic field and radio waves to generate sectional
images of the body? - ANSWER-MRI- Magnetic Resonance Imaging
Which of the following uses radiation to treat cancer tissue? - ANSWER-Radiation
Therapy
Which of the following is specialized imaging of the breast? - ANSWER-Mammography
Is it an appropriate activity for a limited x-ray machine operator to perform a routine
chest x-ray if the licensed practitioner is not in the room? - ANSWER-Yes
Is it an appropriate activity for a limited x-ray machine operator to administer contrast
media for any x-ray examination if the licensed practitioner is in the room? - ANSWER-
No
Which of the following includes a tray to hold the image receptor? - ANSWER-Bucky
Which of the following limits the size of the radiation field? - ANSWER-collimator
The __________ is the device that receives the energy of the x-ray beam and forms the
image of the body part. - ANSWER-image receptor
A type of image receptor that uses a cassette containing a phosphor plate and receives
the x-ray beam - ANSWER-computed radiography (CR)
When using a phosphor plate image receptor, the phosphor plate will be processed and
scanned by a ______ which causes the plate to emit light in proportion to the x-ray
energy received. The light is detected and that information is used to form a digital
image. - ANSWER-laser
Which of the following is the correct term for movement of the x-ray tube from the foot
end toward the head end of the patient? - ANSWER-longitudinal
Which of the following is the correct term for tilting the x-ray table so that the head is
lower than the feet? - ANSWER-trendelenburg
Which of the following controls the penetrating ability of x-rays? - ANSWER-kVp
Which of the following materials absorbs a high percentage of radiation and is used to
make protective apparel ? - ANSWER-lead
, X-rays that pass through the protective lead lining of the tube housing is termed -
ANSWER-leakage radiation
Which of the following describes the particle of an atom that is negatively charged, in an
orbital shell around the nucleus of an atom? - ANSWER-electron
Which of the following describes the particle of an atom that has no electrical charge
and resides in the nucleus? - ANSWER-neutron
Which of the following is the correct term for an electron and a positively charged atom?
- ANSWER-ion pair
Which of the following is the correct term for equal in all directions? - ANSWER-isotropic
Which of the following is the correct term for anything that occupies space and has
mass? - ANSWER-matter
All electromagnetic radiation travels at the same velocity which is _____. - ANSWER-
186,000 miles/sec
The electromagnetic radiation with highest energy is the _____. - ANSWER-
When x-rays are _____ by body tissue they cause ionization of atoms and molecules. -
ANSWER-absorbed
Material that allows x-radiation to pass through is termed _____. - ANSWER-radiolucent
A material with a higher Z-number is: - ANSWER-a material that is more radiopaque
Increased tissue density means: - ANSWER-a material that is more radiopaque
Which term refers to the emission of x-rays equally in all directions? - ANSWER-
isotropic
Which of the following is NOT a possible reaction of x-rays and matter? - ANSWER-
reflection
Which of the following is negatively charged? - ANSWER-cathode
Which of the following contains the filament? - ANSWER-cathode
Which of the following often contains small and large filaments (dual focus) within a
focusing cup - ANSWER-cathode