Grab Bag (q banks) Flashcards

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1
Q

RF system is malfunctioing. RF pulse transmits without a bandwith, what is the most likely outcome

A

your slice selection will be diminishingly thin.

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2
Q

What is the difference between 2D and 3D MR imaging sequences?

A

3D imaging uses two phase encoding direction (in plane and through plane). 2D only has one phase encoding direction. The acquired images can be reformatted in any plane without loss of resolution

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3
Q

F-18 decays to O-18 most commonly by which method of radioactive decay?

A

Beta positive decay

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4
Q

A patient receives I-131 ablation for Grave’s. What happens to the patient’s urine.

A

Excreted and doesn’t need to be tested

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5
Q

What type of detector is a dose calibrator?

A

gas-filled detector

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6
Q

how are geiger mueller counters used

A

detect low radiation

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7
Q

What does the “m” in Tc-99m stand for?

A

metastable

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8
Q

When must medical events be reported to the NRC

A

verbally within 1 day, written in 15 days

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9
Q

What type of detector is a Geiger Mueller?

A

Gas-filled detector

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10
Q

effective half life equation

A

1/Te = 1/Tp+1/Tb

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