C2: Radiographs Flashcards
1
Q
X-ray
A
- radiation beam from machine to patient
- form of shortwave electromagnetic radiation
- travel through objects according to their density
- cannot penetrate metal
2
Q
Radiograph
A
- image produced
- diagnose: heart disease, intestinal obstruction, GDV (twisted stomach), soft tissue damage, cancer
3
Q
Tangential Views
A
- minimum of two views necessary
- views are perpendicular (at 90 degrees) to another
- ex. Stack of coins from top and side
4
Q
Four Effects Of X-Rays Passing Through Cells
A
- Cell death (cancer treatment)
- Irreparable cell damage (cause cancer or death)
- Reparable cell damage (normal environmental exposure)
- no cell damage
5
Q
3 Ways To Protect Against Exposure
A
- time: longer body is exposed to beam the greater the risk of damage
- distance: the closer to the beam the more radiation
- shielding: maximum use of shielding equipment minimizes risk
6
Q
5 Ways Non-Diagnostic Radiographs Are Created
A
- improper technique is used
- animal moves (blurry image)
- incorrect structure (anatomy)
- incorrect positioning
- object obscuring area of interest
7
Q
Primary Beam
A
- maximum source of radiation (all x-rays that travel directly from the beam)
- controlled by collimator
8
Q
Scatter
A
- radiation outside the collimated area
- overflow of the primary beam outside the light column
- should be no scatter in a properly working machine
9
Q
Leakage
A
-radiation that penetrates through the seams in the machine, holes in shielding devices or any other areas that are not blocked from x-rays
