pharmacology Chapter 7 Review Test Submission: Chapter 7 Test

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MYKE
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pharmacology Chapter 7 Review Test Submission: Chapter 7 Test
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2014-10-05 22:40:37
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pharmacology Chapter Review Test Submission
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pharmacology Chapter 7 Review Test Submission: Chapter 7 Test
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  1. Body parts whose tissues are particularly low contrast include the:

    blood vessels.
    kidneys and biliary tree
    stomach and intestines.
    all of the above
    all of the above
  2. Iodine molecules are responsible for the silhouette images projected on radiographic film because they:

    absorb photons.
    allow more photons to pass through for projection onto the radiograph.
    act as a form of barium by preventing or slowing the dilution of osmotic particles.
    prevent fluid in extravascular spaces from being drawn into the bloodstream.
    absorb photons
  3. Osmolality:

    controls the distribution and movement of water between body compartments.
    is the number of milliosmoles per kilogram of water.
    is the number of milliosmoles per liter of solution.
    a and b.
    a and b.
  4. ____ ROCM are supplied in nonsalt forms.

    High-osmolality ionic
    Low-osmolality nonionic
    Low-osmolality ionic
    None of the above
    Low-osmolality nonionic
  5. The newer low-osmolality ionic ROCM:

    contain three iodine atoms per molecule and do not dissociate in solution.
    are referred to as ratio-1.5 media.
    are considered to be ratio-3.0 media.
    None of the above
    are considered to be ratio-3.0 media
  6. Intravascular ROCM:

    have high percentage lipid (fat) solubility.
    consist of large molecules.
    do not cross cellular membranes well.
    b and c.
    b and c.
  7. Diatrizoate meglumine and diatrizoate sodium solutions are:

    generally used when barium sulfate suspension is potentially harmful.
    used when low osmolality is desired.
    preferred over barium sulfate suspension in CT because of less artifact production.
    a and c only
    a and c only
  8. ____ tablets are used for opacifying the gallbladder.

    Diatrizoate meglumine
    Iocetamic acid
    Barium sulfate
    Iodamide meglumine
    Iocetamic acid
  9. Iodamide meglumine:

    is eliminated principally by the kidneys.
    is not effective in cholecystography and cholangiography.
    has been replaced by ultrasonography and CT scanning.
    all of the above.
    has been replaced by ultrasonography and CT scanning.
  10. Patients with renal impairment:

    demonstrate opacified biliary and GI tracts when given intravascular ROCM.
    eliminate as much as 100% of intravascular ROCM within 24 hours.
    exhibit higher opacification in the kidneys.
    all of the above.
    demonstrate opacified biliary and GI tracts when given intravascular ROCM.

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