rad review Easy 1

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McCrae
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294233
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rad review Easy 1
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2015-01-29 00:56:53
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rad review Easy 1
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  1. The line-focus principle refers to the fact that
    1. x-rays cannot be focused 

    2. the effective focal spot is larger than the actual focal spot 

    3. x-rays travel in straight lines

    4. the actual focal spot is larger than the effective focal spot
    4

  2. To eject a K-shell electron from a tungsten atom, the incoming electron must have an energy of at least

    1.       60 keV. 

    2.       70 keV. 

    3.       80 keV. 

    4.       90 keV. 
    2
  3. The NCRP recommends a total equivalent dose limit to the embryo/fetus of__ mSv (___ mrem, 0.5 rem).
    • 5
    • 500
  4. Backscatter on a digital image can cause an artifact called a
    Phantom image artifact
  5. The instrument that is used frequently in quality-control programs to measure varying degrees of x-ray exposure is the
    densitometer.
  6. A drug's chemical name is called its

    A generic name. 
    B trade name. 
    C brand name. 
    D proprietary name.
    a
  7. All the following are part of the Patient's Bill of Rights except 1
    A the right to participate in proposed research studies. 
    B the right to continuity of care. 
    C the right to considerate and respectful care. 
    D the right to review any institutional records.
    d
  8. Place the following anatomic structures in order from anterior to posterior:   
    1.Trachea
    2.Apex of heart
    3.Esophagus

    A Trachea, esophagus, apex of heart 
    B Esophagus, trachea, apex of heart 
    C Apex of heart, trachea, esophagus 
    D Apex of heart, esophagus, trachea
    c
  9. The Centers for Disease Control and Prevention (CDC) suggests that health care workers protect themselves and their patients from blood and body fluid contamination by using
    A strict isolation precautions. 
    B standard precautions. 
    C respiratory precautions. 
    D sterilization
    b
  10. When radiographing young children, it is helpful to   

    1.let them bring a toy.
    2.tell them it will not hurt.
    3.be cheerful and unhurried.

    A 1 only 
    B 1 and 3 only 
    C 2 and 3 only 
    D 1, 2, and 3
    b
  11. During an upper gastrointestinal (GI) examination, the AP recumbent projection of a stomach of average shape will usually demonstrate   
    1.anterior and posterior aspects of the stomach.
    2.barium-filled fundus.
    3.double-contrast body and antral portions.

    A 1 only 
    B 1 and 2 only 
    C 2 and 3 only 
    D 1, 2, and 3
    c
  12. In which of the following examinations would a cassette front with very low absorption properties be especially important?
    A Abdominal radiography 
    B Extremity radiography 
    C Angiography 
    D Mammography
    d
  13. Which of the following is considered the unit of exposure in air?
    A Roentgen (C/kg) 
    B Rad (Gy) 
    C Rem (Sv) 
    D RBE
    a

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