wk 8

Question 1

what would have to be done to the mAs or KVp to radiograph a thorax

Answer 1

1/2 base for mAs; KVp wouldn’t change

Question 2

the FOV for a lateral thorax

Answer 2

thoracic inlet to costophrenic angles

Question 3

on a lateral thorax, the beam would be centered where

Answer 3

on heart or caudal scapula

Question 4

an obese dog’s thorax is to be radiographed, what changes would be made to mAs or KVp

Answer 4

use base mAs; KVp wouldn’t change

Question 5

diaphragmatic hernia

Answer 5

hole or tear in diaphragm from inherited or trauma

Question 6

for optimum viewing of the lung, exposure should be made when

Answer 6

peak inspiration where diaphragm is pushed down so more of thoracic cavity is seen

Question 7

under measuring an animal will have what effect on the film

Answer 7

too light; not enough penetrating power

Question 8

scale of contract for thorax

Answer 8

long

Question 9

fluid in the chest would cause the mAs and KVp to be adjusted how

Answer 9

base mAs; KVp won’t change

Question 10

metastasis in the lungs

Answer 10

secondary malignant growths/masses; they started somewhere else and ended up in the lungs

Question 11

number of cervical vertebrae

Answer 11

7

Question 12

number of thoracic vertebrae

Answer 12

13

Question 13

number of lumbar vertebrae

Answer 13

7

Question 14

number of caudal vertebrae

Answer 14

depends on the breed

Question 15

2 things required for x-rays of the spine

Answer 15

sedation and stretching

Question 16

scale of contrast for spine

Answer 16

short

Question 17

amount of abdominal mAs required for spinal x-rays

Answer 17

2 X base

Question 18

reasons why an x-ray of spine may be requested

Answer 18

1. evaluate condition of the vertebrae
2. fractures
3. wobblers syndrome
4. ataxia
5. arthritis
6. soft tissue tumors involving spine
7. bone tumors

Question 19

if the patient was over measured for an x-ray of the spine, what will the final radiograph look like

Answer 19

too dark

Question 20

the x-ray you have just taken was exposed to light on the way to the darkroom and then processed

Answer 20

it will be black

Question 21

what does static electricity do to a film

Answer 21

black streaks lightning like across the film

Question 22

the clear border which is usually around the film is caused by

Answer 22

the collimator deciding what gets exposed on the film

Question 23

not centering the x-ray beam to the table and then taking an x-ray using the Bucky will result in

Answer 23

grid cut off

Question 24

who cannot assist in radiographs

Answer 24

people under 18

Question 25

when converting from table top to a grid in a Bucky tray, what applies to the mAs using 12:1 grid

Answer 25

5 X mAs

Question 26

radiographic positions are described by

Answer 26

• direction the x-ray beam travels through the body to the film
• by the surface of the body adjacent to the film