Deck 13: Quality Assurance in Nuclear Medicine

Question 1

The discrimination and selection of the gamma photon detected by a scintillation camera are carried out by the

A) detection crystal.
B) photomultiplier tube.
C) pulse height analyzer.
D) collimator.

Answer 1

C
The discrimination and selection of the gamma photon are performed with a pulse height analyzer (PHA).

Question 2

The dose equivalent limit per year for the hands of a nuclear medicine technologist is

A) 0.5 rem (5 mSv).
B) 5 rem (50 mSv).
C) 30 rem (300 mSv).
D) 50 rem (500 mSv).

Answer 2

D
The NRC dose equivalent limits per year for hands, forearms, feet, and ankles is 50 rem (500 mSv).

Question 3

The ability to produce a linear image with straight lines corresponding to the same straight lines of a bar pattern is known as

A) photopeaking.
B) field uniformity.
C) spatial resolution.
D) spatial linearity.

Answer 3

D
The spatial linearity of a gamma camera system is its ability to produce a linear image with straight lines corresponding to the same straight lines of the bar pattern.

Question 4

The NRC requires that all survey meters undergo a ____ calibration and daily reference check before use.

A) daily
B) weekly
C) monthly
D) yearly

Question 5

Spatial resolution of the gamma camera should be evaluated at least

A) daily.
B) weekly.
C) quarterly.
D) semi-annually.

Question 6

Photopeak evaluation of the gamma camera should be performed at least

A) daily.
B) weekly.
C) quarterly.
D) semi-annually.

Question 7

The gamma detector's ability to detect ionizing events is known as

A) photopeaking.
B) sensitivity.
C) spatial resolution.
D) spatial linearity.

Question 8

Uniformity correction evaluation for SPECT gamma cameras should be performed at least

A) daily.
B) weekly.
C) monthly.
D) quarterly.

Question 9

The nuclear medicine procedure that requires photons created during annihilation reactions is

A) SPECT.
B) gamma cameras.
C) PET scanning.
D) All of the above answer options are correct.

Question 10

The main radiation detector in a scintillation gamma camera is a(n)

A) ion chamber.
B) lithium fluoride crystal.
C) sodium iodide crystal.
D) solid-state detector.