Radtech Simulation Examination 8

100 Questions | Total Attempts: 18

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Radtech Simulation Examination 8


Questions and Answers
  • 1. 
    The major risk of injury or harm due to a magnet quench is:
    • A. 

      The boiling off of cryogens that creates an asphyxiating steam

    • B. 

      The magnet becomes so warm that it may cause burns to patients in the bore

    • C. 

      There is no danger with a quench. It is how we shut down the machine for repair

    • D. 

      A blinding flash of light

  • 2. 
    All of the following statements about the magnet of the MRI scanner are true EXCEPT:
    • A. 

      The magnetic field is extremely powerful

    • B. 

      Large metal objects like floor buffers and oxygen cylinders may be picked up by the field and fly toward the magnet bore at high speeds

    • C. 

      The fringe field is confined to the magnet bore

    • D. 

      The magnet is always on, 24/hrs, 7/days

  • 3. 
    Patients with which of the following prosthetic devices may be safely scanned:
    • A. 

      Cardiac pacemaker

    • B. 

      History of having metal flakes in the eye

    • C. 

      Cochlear implant (inner ear prosthetic device)

    • D. 

      Total knee replacement

  • 4. 
    The emergency shutdown button should be used to immediately cut power to the scanner electrical system in each of the following situations EXCEPT:
    • A. 

      Loud popping noises and smoke come from the scanner

    • B. 

      Sprinklers go off in scan room, but there is no fire

    • C. 

      Scan room fire

    • D. 

      The subject in the scanner squeezes the emergency ball

  • 5. 
    With regard to metal objects in the scan room:
    • A. 

      No metallic objects are allowed in the scan room

    • B. 

      Small objects like hair pins may be attracted by the magnetic field but are too small to constitute a safety risk

    • C. 

      Metallic objects may be tested for ferromagnetism by the technologist with a hand-held magnet; if not ferromagnetic, they may be allowed in the scan room

    • D. 

      Most equipment used in an exam is MRI compatible so there is really no reason to worry about this

  • 6. 
    In which of the following situations should you push the “Quench” button:
    • A. 

      A steel oxygen tank was brought into the scan room and has flown across the room and stuck to the magnet, pinning someone’s arm in a painful crush

    • B. 

      Scan room fire

    • C. 

      A janitor has entered the room with a large floor buffing machine which is now stuck to the magnet. No one is hurt, but he can’t pull the machine off the magnet

    • D. 

      All of the above

  • 7. 
    Before beginning to scan a subject, you should:
    • A. 

      Clear the patient of all internal and external metals

    • B. 

      Give the subject earplugs and the emergency squeeze ball

    • C. 

      Check lines of remote verbal communication with the subject (from the workstation)

    • D. 

      All of the answers are true

  • 8. 
    Which of the following is a likely consequence of forgetting to remove your wallet from your pocket before entering the scan room:
    • A. 

      There will likely be no adverse consequence

    • B. 

      The magnetic stripes on your credit cards and ATM cards are erased

    • C. 

      The wallet will heat up and may cause burns

    • D. 

      Because the ink on US currency is ferromagnetic, your wallet may become a projectile and fly into the magnet bore

  • 9. 
    If your patient complains of a body ache, dizziness or anxiety (including claustrophobia) during the middle of the scan, you should:
    • A. 

      Quench the magnet

    • B. 

      Press the Emergency Shut Down Button

    • C. 

      Talk to your patient and remove them from the magnet if they cannot go on

    • D. 

      Ignore their complaints

  • 10. 
    Which of the following objects are potential projectiles?
    • A. 

      Watch

    • B. 

      ID badge

    • C. 

      Pencil

    • D. 

      Clipboard

  • 11. 
    What is a Quench?
    • A. 

      Total power down of the computer system

    • B. 

      A ramping up of the magnetic field in which all of the cryogens are put into the bore thus making the scanner super conductive

    • C. 

      How the staff shuts the magnet down after hours, to ensure maximum safety

    • D. 

      A rapid boil off of cryogens and ultimate loss of a magnetic field

  • 12. 
    There are two real safety concerns with regard to the magnetic forces and how they interact with ferrous objects. They can be described as which of the following:
    • A. 

      Translation and Magnetization of the object

    • B. 

      Transverse and Rotation of the object

    • C. 

      Translation and Torque of the object

    • D. 

      Translation and Mutation of the object

  • 13. 
    USG marker associated with greatest increased risk for Trisomy 21 is
    • A. 

      Echogenic foci in heart

    • B. 

      Hyperechogenic bowel

    • C. 

      Choroid plexus cysts

    • D. 

      Nuchal edema

  • 14. 
    Which one of the following tumors shows calcification on CT Scan
    • A. 

      Meduloblastoma

    • B. 

      Meningioma

    • C. 

      CNS lymphoma

    • D. 

      Ependymoma

  • 15. 
    Most preferred route to perform cerebral angiography is
    • A. 

      Transfemoral route

    • B. 

      Transaxillary route

    • C. 

      Transbrachial route

    • D. 

      Direct carotid puncture

  • 16. 
    Investigation of choice for a lesion of temporal bone
    • A. 

      MRI

    • B. 

      CT

    • C. 

      X-ray

    • D. 

      None

  • 17. 
    Characteristic radiological feature of fibrous dysplasia 
    • A. 

      Cortical erosion

    • B. 

      Bone enlargement

    • C. 

      Ground glass appearance

    • D. 

      Thickened bone matrix

  • 18. 
    A patient is brought in unconscious state with external injuries. CT is normal with no midline shift and ventricles are normal. Multiple small hemorhages are seen at the base of the brain. Diagnosis is
    • A. 

      Concussion

    • B. 

      Contusion

    • C. 

      Subarachnoid hemorrhage

    • D. 

      Diffuse axonal injuries

  • 19. 
    Most common retrobulbar orbital mass in adults is
    • A. 

      Neurofibroma

    • B. 

      Meningioma

    • C. 

      Cavernous haemangioma

    • D. 

      Schwannoma

  • 20. 
    Expanisle type bony metastases are characteristic of primary malignancy of
    • A. 

      Breast

    • B. 

      Prostate

    • C. 

      Kidney

    • D. 

      Bronchus

  • 21. 
    The most accurate investigation for assessing ventricular function is
    • A. 

      MRI

    • B. 

      Multislice CT

    • C. 

      Nuclear scan

    • D. 

      Echocardiography

  • 22. 
    The most common location of hypertensive intracranial bleed is
    • A. 

      Subarachnoid space

    • B. 

      Basal ganglia

    • C. 

      Brainstem

    • D. 

      Cerebellum

  • 23. 
     MRI of a multiple sclerosis patient will show lesion in
    • A. 

      White matter

    • B. 

      Grey matter

    • C. 

      Thalamus

    • D. 

      Basal ganglia

  • 24. 
    Which of the following malignant tumours is radioresistant ?
    • A. 

      Ewing’s sarcoma

    • B. 

      Retinoblastoma

    • C. 

      Osteosarcoma

    • D. 

      Neuroblastoma

  • 25. 
    “Rugger Jersey Spine” is seen in
    • A. 

      Renal Osteodytrophy

    • B. 

      Fluorosis

    • C. 

      Marfan’s Syndrome

    • D. 

      Achondroplasia

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