Radiography Flashcards
What should you use to restrain an animal who is sedated?
Sandbags
What should you use to restrain an animal under anaesthetic?
Ropes
What should you do to protect yourself from radiation?
Wear lead apron
Collimate beam
Stand 2 metres away
Radiographs are described in the way that the beam travels. What would be the radiographic view of a dog in sternal recumbency?
Dorsoventral view
What do you use to keep an animal parallel to the plate?
Foam wedges
Why should you collimate a beam?
Prevent unnecessary exposure
Increase clarity
Reduce scatter
Radiographs always need labelling L or R. What does this show?
Which leg you are looking at
Which side is laying on the plate (lateral view)
Which side of the animal is which (dorsoventral/ventrodorsal)
Why should thorax radiographs be taken during inspiration?
So the lungs are inflated
Where is the centre point for a lateral radiograph of the skull?
Medial canthus of the eye
Where is the medial point for a dorsoventral/ventrodorsal view of the skull?
At the midway point between the eyes
Where is the centre for a radiograph of the thorax in lateral recumbency?
The caudal border of the scapula
Where should you collimate a radiograph of the thorax?
To the skin edges
Including the last rib
Where should you collimate a radiograph of the skull to?
Skin edges
Half way down the neck
What should you comment on when viewing a radiograph?
Collimation
Exposure
Development
Positioning
What colour will an overexposed radiograph be?
Too dark
What is collimation?
The restriction of the beam size to the area under observation
What is exposure?
THe amount of radiation used to generate the image
What is development?
Chemical processing of radiograph
Under developed - poor contrast
Resolved by digital radiography
WHat are 3 important ways to stay safe?
Distance
Shielding
Time
who is responsible in the practise for enforcing radiograph rules?
Radiation protection supervisor
WHich way should the head face on a radiograph?/
To left
If dorsoventral - top opposite sides, as if looking over
