Let's Test Your MRI Safety Knowledge

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Lets Test Your MRI Safety Knowledge - Quiz

This quiz tests your knowledge of MRI Safety. You need to answer every question correctly to pass the quiz.


Questions and Answers
  • 1. 

    What does MRI stand for? (Multiple Choice)

    • A.

      Medical Restricted Intrusion

    • B.

      Magnetic Resonance Imagining

    • C.

      Mediated Restricted Intensity

    • D.

      Monkey Rabbit Igloo

    Correct Answer
    B. Magnetic Resonance Imagining
    Explanation
    MRI stands for Magnetic Resonance Imaging. This medical imaging technique uses a strong magnetic field and radio waves to generate detailed images of the body's internal structures. It is commonly used to diagnose and monitor a variety of medical conditions, as it provides clear and precise images of organs, tissues, and bones.

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  • 2. 

    It is safe to bring my laptop into the MRI Magnet Bay or OR (True/False)

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    Bringing electronics such as a laptop, cell phone, or pager can result in damage to your device. Laptop hard drives are easily corrupted or erased by the magnetic field. The magnetic field can also drain the battery or damage other electronic devices.

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  • 3. 

    What is a quench? (Multiple Choice)

    • A.

      Damage to the MRI which causes exponentially increasing magnetic fields that can be very dangerous

    • B.

      The process of adding supercooled gasses to an MRI to produce magnetism

    • C.

      Scanning a patient with an MRI scanner

    • D.

      An intentional or unintentional release of supercooled gas from the magnet coils.

    Correct Answer
    D. An intentional or unintentional release of supercooled gas from the magnet coils.
    Explanation
    Quench refers to an intentional or unintentional release of supercooled gas from the magnet coils in an MRI. This can occur due to various reasons such as a power failure or a malfunction. When a quench happens, the sudden release of gas causes the magnet to lose its superconductivity, resulting in a rapid increase in resistance and the generation of heat. This can be dangerous as it can damage the MRI and potentially harm nearby individuals if not properly handled.

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  • 4. 

    Which of the following is NOT safe to bring into an Magnetic Resonance (MR) environment? (Checkboxes - you may select one or more answers)

    • A.

      Keys

    • B.

      Cell Phone

    • C.

      Wedding or engagement ring

    • D.

      Credit Cards, Hotel Key Cards, Passports

    Correct Answer(s)
    A. Keys
    B. Cell Phone
    C. Wedding or engagement ring
    D. Credit Cards, Hotel Key Cards, Passports
    Explanation
    None of the items above are safe to bring into an MR environment. Metal keys or rings can become projectiles from the force of the magnetic field. Electronics such as cell phones can be damaged by the MR field. The magnetic strips on credit cards, hotel keys, and passports will be damaged if near the magnetic field.

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  • 5. 

    I need an MRI Pre-screening before I enter an MRI environment. (True/False)

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    To evaluate any potential health risks for entering an MR-environments such as specific medical conditions, pregnancy, surgical implants, pacemakers, neurostimulators, cochlear implants, ferromagnetic or unidentified clips, pumps, surgical screws, metal or unidentified bodies near the eyes, shrapnel, etc. need to be evaluated my hospital personnel before entering an MR area

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  • 6. 

    What are the oval lines or regions in the magnet bay and MRI operating rooms? (Multiple Choice)

    • A.

      Magnetic field lines

    • B.

      Table-position markers

    • C.

      Sterilization lines

    • D.

      A new OR game

    Correct Answer
    A. Magnetic field lines
    Explanation
    Most MRI Magnets have oval field lines or regions around them indicating the magnetic field (colors vary on each site). The inner set of lines usually indicate 50 Gauss and the outer lines usually indicate 5 Gauss. 5 Gauss is enough to turn a metallic object into a projectile or cause damage.

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  • 7. 

    Exposure to magnetic resonance (MR) fields from MRIs is as or more dangerous as exposure to radiation from a CT or X-ray. (True/False)

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    Numerous research studies show no health issues as a result of prolonged exposure to a magnetic field by an MRI. There are other hazards such as metallic objects or quenches of which to be aware.

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  • 8. 

    What does the quench button do? (Multiple Choice)

    • A.

      Causes an immediate increase in the magnetic field in the event of an emergency.

    • B.

      Starts the process of a new MRI patient scan

    • C.

      Only turns off all electrical power to the magnet

    • D.

      Causes immediate collapse of the superconductive magnetic field in minutes

    Correct Answer
    D. Causes immediate collapse of the superconductive magnetic field in minutes
    Explanation
    Only for emergency use when someone is pinned to the magnet by an object or is incurring harm as a result of the magnetic field

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  • 9. 

    What does the emergency stop button do? (Multiple Choice)

    • A.

      Causes an intentional release of supercooled gas from the magnet coils to reduce the Magnetic Field

    • B.

      Turns off all electrical power to the magnet and stops magnet movement

    • C.

      Turns off the magnetic vacuum pump

    • D.

      Deletes the current MRI scans from the imaging computer

    Correct Answer
    B. Turns off all electrical power to the magnet and stops magnet movement
    Explanation
    The emergency stop button is designed to ensure the safety of individuals in case of an emergency situation. It functions by immediately cutting off all electrical power to the magnet and stopping the movement of the magnet. This action helps to prevent any potential harm or damage that could occur due to the continued operation of the magnet.

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  • 10. 

    I will ask the appropriate staff or personnel if I have any questions BEFORE I enter an Magnetic Resonance (MR) environment. (True/False)

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    The statement suggests that the individual will seek clarification from the relevant staff or personnel before entering a Magnetic Resonance (MR) environment if they have any questions. This indicates a proactive approach to ensuring safety and understanding the necessary precautions in such an environment. Therefore, the correct answer is true.

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