Test 3

Question 1

This is an example of voluntary motion.

Answer 1

Fear of exam

Question 2

When performing a chest x-ray, which of these areas are most important to shield?

Answer 2

Gonads

Question 3

What is the first step in gonadal protection?

Answer 3

Collimation

Question 4

What is the first step to the TJC 10-step QA program?

Answer 4

Assign responsibility

Question 5

For the centering SID QC test, the actual center of the x-ray beam, must align to the centering indicator by _____ of the SID.

Answer 5

1%

Question 6

What is the equation for the kVp reproducibility QC test?

Answer 6

(Exposure 1-Eposure 2)/Exposure 1= %

Question 7

This formula is used during which QC test: (Exposure 1 mAs-Exposure 2 mAs)/ Exposure 1 mAs=?

Answer 7

Exposure Linearity

Question 8

The following exposures were acquired on the radiographic machine. If testing for exposure linearity, is the machine compliant?
100 kVp, 10 mAs, 1.0 ugy
100 kVp, 20 mAs, 2.1 ugy
100 kVp, 30 mAs, 3.6 ugy
100 kVp, 40 mAs, 4.2 ugy

Answer 8

No, this machine is not compliant

Question 9

When testing the CR units, all detectors must be calibrated to

Answer 9

Just the other detectors

Question 10

Spatial resolution if the IR is tested using which tool?

Answer 10

Lines pair

Question 11

A CR cassette is exposed using mAs at 65 kVp and the resulting exposure indicator is 202. The same cassette is exposed using the same technique and processes on a different reader, and the resulting exposure indicator is 435. This is a quality control issue related to?

Answer 11

Reader calibration

Question 12

For the collimation SID QC test, the light field must align with the x-ray field collimation within +/- _____ of the SID.

Answer 12

2%

Question 13

For the exposure time and AEC QC test, the actual exposure time must be within +/- ______ of indicated exposure time.

Answer 13

5%

Question 14

For the exposure time and AEC QC test, if I set my exposure time to 100ms, an acceptable exposure time to pass this test would be

Answer 14

95ms

Question 15

T/F: It is okay to repeat an exposure to improve an acceptable image.

Answer 15

False

Question 16

When discussing the kVp calibration QC test, how much tube potential variance is allowed when the assigned technique for an exposure is 70 kVp?

Answer 16

+/- 3.5 kVp

Question 17

______ cells have only 23 chromosomes each.

Answer 17

Reproductive

Question 18

In digital radiography, ______ is made of amorphous silicon, converts x-ray energy into visible light.

Answer 18

Scintillator