Quiz #2

Question 1

Cervical spine

Recommended kV range: ________

Answer 1

75-85 kV

Question 2

AP Thoracic

Recommended kV range: ________

Answer 2

75-85 kV

Question 3

Lat Thoracic

Recommended kV range: ________

Answer 3

85-95 kV

Question 4

AP Lumbar

Recommended kV range: ________

Answer 4

80-90 kV

Question 5

Lat Lumbar

Recommended kV range: ________

Answer 5

85-95 kV

Question 6

AP Full Spine

Recommended kV range: ________

Answer 6

80-100 kV

Question 7

Pelvis/Hip

Recommended kV range: ________

Answer 7

75-85 kV

Question 8

MAs controls ________

Answer 8

film density

Question 9

________ % MAs makes 1st VISIBLE/SLIGHT change in DENSITY

Answer 9

30% MAs

Question 10

50% MAs will ________ density by 1/2

Answer 10

REDUCE density by 1/2

Question 11

DOUBLING the MAs DOUBLES the DENSITY of the film. This is known as the ________

Answer 11

50% reciprocal rule

Question 12

If the film is TOO DARK, but we can see the structures, we use ________ (MAs)

Answer 12

50% rule

1/2 MAs - 50% rule

Question 13

If the film is TOO LIGHT, but we can see the structures, we ________ the MAs

Answer 13

DOUBLE the MAs

2x MAs - 50% reciprocal rule

Question 14

________% ________ in kV will DOUBLE the DENSITY of the film

Answer 14

15% kV
INCREASE
(2x film density)

Question 15

________% ________ in kV will CUT the DENSITY of the film by 1/2

Answer 15

15% kV
DECREASE
(1/2 film density)

Question 16

If a film is TOO DARK or TOO LIGHT but still SHOWS the structures, we use the ________ for kV

Answer 16

15% rule

Question 17

It terms of FILM DENSITY, we want to use the ________ kV range

Answer 17

OPTIMAL kV range

Question 18

HIGH CONTRAST = ________ scale = BLACK/WHITE with a few shades of GRAY in between

Answer 18

short scale 
(HIGH contrast = SHORT scale)

Question 19

LOW CONTRAST = ________ scale = LOTS of GRAYS

Answer 19

long scale 
(LOW contrast = LONG scale)

Question 20

If a film is TOO GRAY, but DENSITY is good, we should do what? (2)

Answer 20

DECRESE by kV 15%
AND
DOUBLE MAs (2x MAs)

Question 21

If a film does NOT have ENOUGH GRAY, but DENSITY is good, we should do what? (2)

Answer 21

INCREASE by kV 15%
AND
DECREASE MAs in 1/2 (1/2 MAs)

Question 22

If a film is TOO DARK, AND structures are NOT VISIBLE, we should do what? (2)

Answer 22

DECREASE kV by 15%
AND
DECREASE MAs by 1/2 (1/2 MAs)

Question 23

If a film is TOO LIGHT AND structures are NOT VISIBLE, we should do what? (2)

Answer 23

INCREASE kV by 15%
AND
DOUBLE MAs (2x MAs)

Question 24

If you can see ALL the structures, but the film is just a LITTLE TOO LIGHT, we should ________ (2)

Answer 24

INCREASE kV by 15%
OR
DOUBLE MAs (2x MAs)

Question 25

If you can see ALL the structures, but the film is just a LITTLE TOO DARK, we should ________ (2)

Answer 25

DECREASE kV by 15% OR DECREASE MAs by 1/2 (1/2 MAs)