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Question 1

what is the limit of the whole body SAR in 1st level mode

Answer 1

4W/kg

Question 2

what is the reason why a fast spin echo may produce more heating than a gradient echo

Answer 2

the presence of 180 deg RF pulses

Question 3

what magnetic sysceptibility is defined here 1X10^-3

Answer 3

paramagnetic

Question 4

what magnetic sysceptibility is defined here -1X10^-3

Answer 4

diamagnetic

Question 5

what period of time does the B1 plus rms average energy delived to our patient over?

Answer 5

10 seconds

Question 6

what pulse sequence will most likely promote the most heating

Answer 6

single shot fse

Question 7

what pulse sequence will most likely promote the most heating spin echo or gradient echo

Answer 7

spin echo

Question 8

what pulse sequence will promote the most opportunity for stimulation

Answer 8

DWI

Question 9

what pulse sequence will promote the most stimulation

Answer 9

EPI

Question 10

what risk is associated with the pressure building up in the MRI room following a malfunctioned release of helium

Answer 10

ear damage

Question 11

what risk is associated with the temperature of cryogen

Answer 11

frostbite

Question 12

what will dtermine how well a patient will regulate their core temperature

Answer 12

surface area of patient

Question 13

what will determine the level of translational force

Answer 13

magnetic spatial gradient

Question 14

what will increase induced currents in a patient

Answer 14

fast gradient activation and stronger fields

Question 15

what will increase the amount of stimulation in a patient: decrease slice thickness increase FOV decrease matrix

Answer 15

decrease slice thickness

Question 16

what will increase the amount of stimulation in a patient: decrease slice thickness increase FOV imcrease matrix

Answer 16

increase matrix

Question 17

what will increase the amount of stimulation in a patient: increase slice thickness decrease FOV decrease matrix

Answer 17

decrease FOV

Question 18

what zone is accessible to the general public

Answer 18

Zone 1

Question 19

What zone is the quench pip in

Answer 19

Zone 3

Question 20

when considering heating from the RF field what is our main concern

Answer 20

increasing core temperature

Question 21

which groups of agents do not require labs to be drawn

Answer 21

group 2

Question 22

which is considered the most accurate when referring to the patient RF dose SAR SED B1+rms

Answer 22

B1+rms

Question 23

which mode of operation should not cause physiological stress to our patient

Answer 23

normal mode

Question 24

which MRI unit can produce a B0 greater than 3T

Answer 24

superconducting MRI

Question 25

which MRI unit would most likely have a vertical field

Answer 25

permanent MRI

Question 26

which MRi unit would most likely produce the lowest field strength

Answer 26

permanent MRI

Question 27

which of the following is true when allowing the door to z4 to be open according the ACR manual

Answer 27

all

Question 28

which metal in a tattoo has the highest probablbility of producing a burn in the patients skin

Answer 28

iron oxide

Question 29

which of the following offer the role of MR safety consultant

Answer 29

MRSE

Question 30

which of the following shoulde be used to identify the largest threat to our patients associated with the static magnetic field

Answer 30

magnetic spatial gradient

Question 31

which of the following whole sequences would be most likely to produce stimulation in our patient DWI Conventional spin echo

Answer 31

DWI

Question 32

whcih fo the following with decrease SAR decrease TR decrease flip angle decrease Freq matrix

Answer 32

decrease flip angle

Question 33

whcih fo the following with decrease SAR decrease TR decrease flip angle decrease bandwidth

Answer 33

decrease bandwidth

Question 34

which fo the following with decrease SAR increase TR increase phase matrix decrease freq matrix

Answer 34

increase TR

Question 35

which fo the following with decrease SAR increase TR increase phase matrix increase freq matrix

Answer 35

increase Freq matrix

Question 36

which of the following will decrease our SAR gradient echo or spin echo

Answer 36

gradient echo

Question 37

which of the following will define the level of stimulation produced in our patient duty cycle slew rate

Answer 37

slew rate

Question 38

which of the following will fight for the gadolinium ion whan transmetalation is occuring carbonate or zinc

Answer 38

carbonate

Question 39

which of the followiong promote less stimulation when decreased phase matrix FOV slice thickness

Answer 39

phase matrix

Question 40

which of the following is considered more stable macrocyclic or linear

Answer 40

macrocyclic

Question 41

which of the following is considered more stable ionic or non-ionic

Answer 41

ionic

Question 42

which of the followoing would we assume would produce the largest artifact 316L SS Clip cobalt clip titanium clip

Answer 42

cobalt clip

Question 43

which of the followoing would we assume would produce the largest artifact iron stent titanium stent copper stent

Answer 43

iron stent

Question 44

which of the zones require a keypad or badge system to restrict access

Answer 44

Zone 3

Question 45

while scanning you see a large susceptibility artifact in the brain what should you do

Answer 45

contact the mrsd and discuss the best course of action

Question 46

who is responsible for building a safe MRI program for a site which may contain a PET/MRI or MRI in surgery

Answer 46

MRMD

Question 47

who is responsible for reviewing MRI screening sheets with patients prior to an MRI

Answer 47

level 2 personnel

Question 48

you are the only individual within a facility besides a manager and another tech are you able to give contrast

Answer 48

NO