rad review Easy 1

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rad review Easy 1
2015-01-29 00:56:53
rad review Easy

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

  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. 
  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
  6. A drug's chemical name is called its

    A generic name. 
    B trade name. 
    C brand name. 
    D proprietary name.
  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.
  8. Place the following anatomic structures in order from anterior to posterior:   
    2.Apex of heart

    A Trachea, esophagus, apex of heart 
    B Esophagus, trachea, apex of heart 
    C Apex of heart, trachea, esophagus 
    D Apex of heart, esophagus, trachea
  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
  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
  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
  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
  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