Radiation Protection in Radiology
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Questions and Answers

What is the minimum irradiation time generally used in mechanical timers?

  • 1/4 second (correct)
  • 1 second
  • 1/8 second
  • 1/2 second

    • What is the recommended technique for radiation protection?

  • Short cone technique
  • Parallel technique (Long cone technique) (correct)
  • Bisector technique
  • Rectangular collimation

    • How should lead aprons be stored when not in use?

  • Hung up (correct)
  • Folded neatly
  • Stacked on top of each other
  • Placed in a drawer

    • What is the percentage reduction in thyroid dose when using a thyroid protective collar?

    <p>92%</p> Signup and view all the answers

    What is the percentage reduction in gonadal dose when using a lead apron?

    <p>98%</p> Signup and view all the answers

    What is the approximate radiation dose from a single periapical film compared to the average daily total background dose?

    <p>1/27th</p> Signup and view all the answers

    What is the recommended frequency for evaluating the dosimeter used by X-ray personnel?

    <p>Every 3-4 weeks</p> Signup and view all the answers

    What is the recommended thickness of lead coating for the walls and doors in a room containing X-ray equipment?

    <p>0.2 mm</p> Signup and view all the answers

    Where should the dosimeter be worn by X-ray personnel?

    <p>On the collar</p> Signup and view all the answers

    Which of the following is NOT a recommended practice for protecting the environment from X-ray radiation?

    <p>Allowing X-ray personnel to stand in the examination room or next to the unit</p> Signup and view all the answers

    What is the recommended lead coating thickness for the panels separating X-ray devices or located in front of the device?

    <p>0.5 mm</p> Signup and view all the answers

    In dental practices, what is the reason that brick provides natural protection from radiation?

    <p>Dental practices have a relatively low workload</p> Signup and view all the answers

    Which of the following is NOT a stage of radiation protection measures?

    <p>Protection of the equipment</p> Signup and view all the answers

    Which of the following practices is NOT recommended for protecting the patient from radiation?

    <p>Using the highest possible dose to ensure image quality</p> Signup and view all the answers

    What should be done for pregnant patients requiring radiography, according to the text?

    <p>Have them wear a lead apron, reduce the number of films and irradiation time, and take radiographs carefully to avoid repetition</p> Signup and view all the answers

    Which of the following statements about radiation protection is TRUE?

    <p>The environment should be dark for examining radiographic films</p> Signup and view all the answers

    Which of the following is NOT mentioned in the text as a way to protect the environment from radiation?

    <p>Implementing regular equipment maintenance schedules</p> Signup and view all the answers

    Which of the following is a recommended practice for radiation protection?

    <p>Determining the appropriate indication and technique for the patient based on anamnesis and clinical examination</p> Signup and view all the answers

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