RAD-146 CONTRAST MADE CLEAR QUESTIONS

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  1. the choice of contrast medium is ultimately the responsibility of the
    A.radiographer (RT)
    B.Radiology Supervisor
    C.radiologist
    D.Radiologist Assistant
    C.
    (this multiple choice question has been scrambled)
  2. x-radiation is
    A.long wavelength, high energy
    B.short wavelength, high energy
    C.short wavelength, low energy
    D.long wavelength, low energy
    B.
    (this multiple choice question has been scrambled)
  3. absorption or attenuation of the beam is dependent upon
    size of pt
    density of the organs involved
    the number od electrons in the path of the beam
    all three
  4. which of the following is NOT an advantage gained from using digital and computerized recording and viewing?
    A.the initial set up cost is relatively inexpensive
    B.electronic storage is relatively inexpensive compared to the storage of xray films
    C.there is rapid availability of images
    D.the abiltiy to manipulated data exists
    A.
    (this multiple choice question has been scrambled)
  5. what is natural contrast
    contrast controlled kvp
    contrast controlled by the difference in densities between organs
    contrast degraded by an increase in scatter
    contrast controlled by the difference in atomic number of adjacent tissues
    contrast controlled by the difference in densities between organs

    contrast controlled by the difference in atomic number of adjacent tissues
  6. how can something be artificially altered to provide negative contrast
    A.introducing iodinated contrast media
    B.by introducing methylcellulose
    C.by introducing barium sulphate contrast media
    D.by introducing air or gas
    D.
    (this multiple choice question has been scrambled)
  7. which of the following contrast media examination is performed to dilate pathologically narrowed arteries?
    A.Percutaneous Transluminal Angiography (PTA)
    B.Myelography
    C.venography
    D.IVP/IVU
    A.
    (this multiple choice question has been scrambled)
  8. why is barium sulphate suspension preferred over iodinated contrast media for the visualization of the GI tract?
    A.it is better to use on a presurgical patient
    B.It is better to use if a perforation is suspected
    C.it has better coating properties
    D.It will not cause peritonitis if it escapes from the bowel
    C.
    (this multiple choice question has been scrambled)
  9. which of the following is NOT true concerning osmolality?
    A.it is expressed in milliosmoles per kilogram of water
    B.lower concentration solution can ve said to "draw" water from the higher concentration solution
    C.the closer the osmolaity of radiological contrast media is to that of body fluids the better the general tolerance
    D.the higher the osmotic pressure the poorer the tolerance
    B.
    (this multiple choice question has been scrambled)
  10. How can the viscosity of contrast media be lowered
    by warming it
    by selecting a contrast media with a lower concentration
    by increasing the injection rate
    • by warming it
    • by selecting a contrast media with a lower concentration
  11. what property of conrtast is directly responsible for a number of side effects including the sensation of heat, renal damage & electrolytes imbalance?
    A.viscosity
    B.osmolality
    C.chemotoxicity
    D.lipophiliscity
    B.
    (this multiple choice question has been scrambled)
  12. with increasing the strength of contrast media, which of the following is NOT true
    a.the opacifying poweri ncreases
    v.viscosity increases
    c.the osmolality  increases
    d. patient tolerance increases
    d.
  13. which of the following is true about non ionic contrast media
    A.when dissolved in water it breaks apart into two particles
    B.it has meglumine cations or sodium cations or a mixture of both
    C.It does not ionize  or break apart into charged particles
    D.It has a high osmolality
    C.
    (this multiple choice question has been scrambled)
  14. which of the following contrast medias are considered "dimeric" and are virtually isotonic to blood and cerebrospinal fluid
    A.iotrolan and iodixanol
    B.metrizamide and iohexol
    C.lopromide and iopamidol
    D.meglumine and sodium
    A.
    (this multiple choice question has been scrambled)
  15. which of the following reactions to contrast media are independent of dose
    A.urticaria
    B.hypotension
    C.vasodilation
    D.heat
    A.
    (this multiple choice question has been scrambled)
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RAD-146 CONTRAST MADE CLEAR QUESTIONS
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