EXAM QUESTIONS AND CORRECT ANSWERS (VERIFIED
ANSWERS ) ALREADY GRADED A+.
Which x-ray has more penetrating power, one that was created
with a kVp of 60 or an x-ray that was created with kVp of 80? -
ANSWER-80 kVp
What is the function of the PID? - ANSWER-aim the central rays -
used to aim the x-rays
What are the effects of chronic exposure to radiation? - ANSWER-
- shortened life span
- embryologic defects
- cancer
- cataract formation
- genetic mutations
What should be included in a written quality assurance program?
- ANSWER-- monitoring and maintenance
- schedule staff responsible for tests
- log of tests and results
- log of retakes
- periodic evaluation of plan
, What is the purpose of an output test? - ANSWER-check the
function of the x-ray unit
Why are quality control tests performed? - ANSWER-- to discover
problems before exposures are made on patients
- to maintain a high standard of image quality
- keep patient exposures to a minimum
- reduce the number of retakes
How is a stepwedge made? What two tests can it be used for? -
ANSWER-- attach
pieces of a lead foil to a cardboard or tongue depressor
- used for output test and its purpose
Describe the coin test and its purpose. - ANSWER-under safelight
conditions, unwrap a film and place a coin on it. leave the coin on
film for about 4 minutes, process film. successful test will result
in a clear film. if the outline of the coin is visible, there is a
safelight problem.
Where is the safest place for an operator to stand if there is no
shielding? - ANSWER-6 feet away; out of the primary beam,
behind the bulkiest part of the patient's head