*1.A patient needs to have a pre MRI x ray of their orbits done if:(Required.)

They have worked with metal but are not 100% sure if any ever went in

They have worked with metal and definitely did have a piece go in their eye but didn't go to hospital and have it removed..

The patient is unconscious and a CT Head does not demonstrate the orbits clearly

All of the above

2.Which of these strategies will decrease SAR whilst scanning a patient?

Decreasing the TR

Reducing the Flip angle.

Increasing the number of slices

Using Spin echo sequences rather than Gradient echo sequences

*3.Which of the following should happen when scanning a patient in MRI?(Required.)

Use pillow cases between the patient's arms and the bore of the magnet?

Allow the patient to have their legs crossed and hand together if that's better for them.

Place foam pads 1-2 cm thick to insulate the patient form cables, the bore of the magnet and between limbs

Do not communicate with the patient in the scanner during the whole scan to give them a break

*4.What is a Quench?(Required.)

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

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

Scanning a patient with an MRI scanner

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

*5.What does the quench button do(Required.)

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

Starts the process of a new MRI patient scan

Only turns off all electrical power to the magnet

Causes immediate collapse of the superconductive magnetic field in minutes

*6.What does the emergency stop button do?(Required.)

Causes an intentional release of supercooled gas from the magnet coils to reduce the magnetic field

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

Turns off the magnetic vacuum pump

Deletes the current MRI scans from the imaging computer