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mri physics unit 1
Question | Answer |
---|---|
if a pt has staples in their head and you are scanning their knee what do you do | depends on situation, use heat sync |
main magnetic filed | static |
what are the fdas limit on this field (static) | 8 |
what is a quench | |
what are the affects of the quench on a patient | frostibite, headaches |
what are the fdas hearing | 102 decibals |
fda limit on tingly feelings | as long as patient can tolerate it |
magnetohydrodynamic effect | static |
boiling off of liquid helium | quench |
is metal safe to scan | no |
what do you do if a heart valve patient comes in | ask for an implant card, or look up medical records to see if it is safe |
MR burn hazard in this field | gradient |
when should a patient be screened | everytime |
what is the guass line that the general public is restricted to | 9 |
filed strenght of 3 tesla is equal to how many guass | 30000 |
how to prevent burns | make sure things are not in loops, pt body no on side of bore of magnet |
insulating pads | .25 mm or 1 cm |
MRMD | |
level one personnel | |
level two personnel | |
non mr personnel | general public |
informed consent | different types of communication |
who is able to do written consent | family member, guardian, patient, of legal age and conscious |
medical aspepsis | cleaning equipment, standard precautions |
surgical asepsis | |
transmission of infections |