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23 Cards in this Set
- Front
- Back
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The Ma setting controls the: |
Quantity of the beam |
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The dosimeter contains what kind of crystal? |
Lithium |
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If a radiograph is developed for too long, it will appear: |
Too dark |
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The most vital part of the cell that is negatively affected by radiation is the : |
DNA |
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True or False: developer can safely be discarded down the sink |
True |
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At a higher kVp setting, the beam will have: |
Higher energy and shorter wavelength |
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An SID of 35 inches will result in a radiograph that is: |
Too dense and too low of a contrast |
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What is considered to be radiopaque? |
Sand bags |
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In regards to contrast and density, A proper radiograph of a femur should have: |
High contrast and low density |
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If an xray is taken where the bones are too grey, how must the settings be altered? |
The KVP should be lowered (10-15%) while the mAs would stay the same |
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What is the purpose of the developer? |
It turns the exposed silver halide crystals to black metallic crystals and shows the latent image |
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What is the purpose of the fixer? |
It washes away all the unexposed silver hylide crystals and hardens the emulsion |
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For a lateral abdominal x raywhere would be measured ? |
Just caudal to the thirteenth rib |
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For a lateral abdominal x-ray, what are your peripheral borders? |
From the 9th thoracic vertabra to the femoral head |
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The amount of scatter will increase if what three things are also increased? |
kVp Thickness of patient Colummation |
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How do you calculate Ma if you are given Mas and ms (ms = milliseconds) |
Mas divided by s ... Find s by dividing ms by 1000 |
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If you use a setting that is calculated for a smaller animal and therefore too low for the x-ray you are taking. How will this affect the quality of your radiograph? |
Your image will have a very low contrast and a very high density |
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Explain the generation of x-rays through excitation |
When the negatively charged cathode shoots negatively charged electrons over to the positively charged anode (metal plate) the energy is transferred to the electrons of the anode and are moved from their orbit. Once the electron moves back to its original orbit it causes a loss of energy, and is released in the form of energy known as a photon or x-ray |
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Give three potential reasons not to preform a VD abdominal radiograph |
Too skinny Obese Pregnant Trauma |
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What is a lateral decubitus view? |
When the animal is placed in lateral and a VD or DV x-ray is preformed by moving the tube head on the side |
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Besides an L or R marker, list 3 things that MUST be included on a label with every radiograph |
Name of practice Patient/owner names Log ID number Date |
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X-rays are capable of penetrating objects but can also be absorbed. Absorbtion depends on what 3 factors? |
Atomic # Thickness of body part KVP - strength of beam |
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What 3 landmarks will help indicate the left side of the animal if there is no L or R marker? |
The descending colon is always on the left Stomach is a little more towards the left The left kidney is "left" behind |
