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| Discovered x-rays in 1895 |
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| The amount of heat energy needed to heat up the tungsten filament. |
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| Holds the filament that will be heated to excite the electrons, giving them a negative charge. |
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| Electrons are attracted to this because it is positively charged. |
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| When an xray leaves the tube it has an uneven distribution of photons and if you don't adjust the angle the image will have blurry edges or shadows. |
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| Restricts the size of the beam. |
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| Maximum permissible dose; max dose that a person may receive in a given time period. |
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| National Committee on Radiation Protection; sets the guidelines for radiation protection |
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| As low as reasonably achievable |
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| Measure your radiation exposure in sieverts (SV) |
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| How much exposure can you safely receive in one year. |
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| The difference in energy potential between the cathode and anode. |
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| Determines the quality of the x-ray beam; quality refers to its ability to penetrate tissue. |
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| (2 * thickness) + 40 = kVp |
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| source-image distance; distance between the source of the xrays and the film |
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Four layers of xray screen;
Base
Reflective layer
Phosphor crystal layer
Protective coat |
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| What is the distance you must keep film away from the darkroom lightsource? |
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| What are four things needed to keep a processor maintained? |
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Definition
1. Check solution level
2. Temp check
3. Rinse and wipe rollers
4. Clean tanks |
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| Orientation for lateral x-ray? |
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Definition
| Running to the left. Head to the left, spine at the top. |
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| Orientation of VD/DV x-ray? |
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| Head at the top, animals right side on viewer's left. |
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Lateral: feet pointing left
PA: feet pointing down |
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| Quantity of electrons. Controls density. |
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| Electron speed. Controls contrast. |
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| Degree of blackness on a film. |
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| The density difference between two areas on the same radiograph. |
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| What converts the latent image to a visible image |
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| what changes silver halide crystals to black metallic silver crystal |
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| small bulb w/ filters, eliminates certain color lights |
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| What happens when the film is exposed to light |
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| What color should the walls in the darkroom be? |
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| What's the ideal temperature when manual Developing |
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| Whats the position when taking an xray of the hock |
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| How long should the film be in the fixer for manual developing |
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| twice as long as the developer |
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| When taking a abdominal xray when should the pic be taken? |
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| What Xray usually requires 3 views? |
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| What is use to measure before an xray |
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| what is an example of biological growth |
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| what is measurable difference betw. adjacent density |
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| Increase pH levels and causes the emulsion layer to swell |
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| Maintains a stable rate of Development |
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| Limits the developing agent from the silver halide crystal |
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| keeps the emulsion from swelling too much |
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| dissolves the extra chemicals |
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| Film too light but adequate penetration |
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| Film too light w/ inadequate penetration |
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| Film too Dark but adequate penetration |
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| Film too Dark w/ inadequate penetration |
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| How long should the film be in the raise |
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| Accelerate the action of the fixer is |
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| A VD xray of the pelvis should include what? |
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| pelvis, femur, stifle, and patella |
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| Where do you center the beam on an extended pelvis xray? |
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| what has to be done when taking an OFA |
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| Sedated, extend the patellas rolled inward, stifles |
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| Why is the area of interest is placed closed to the film as possible? |
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| When taking an xray of the tarsus what should be in your view? |
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| Tibia fibula and metatarsus |
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| What part of the machine is used to change the size of the picture? |
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| When doing a table top what should the SID be? |
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| When doing an abdominal radiograph what should I measure? |
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| the Dog is measured at 13cm where should the cassette be placed |
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least than 10cm table top
larger than 10cm in the Bucky tray |
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the docs ordered a 3rd view of the thorax what should that 3rd one be?
R LAT, VD.... |
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| docs a R front proximal phalange view of the horse. What position is the hoof in? |
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| docs ordered a dorsal palmer view of the fetlock joint. How should the beam enter and exit the foot? |
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| enters the front, exits the back |
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| How far should you be standing from a dental radiography before the xray is taken? |
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| Which tooth is the most difficult to take an xray on? |
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| what type of film is used to take a dental xray? |
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| for a DV view of the skull, what positions is the animal in? |
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| What does rostralcaudal mean |
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| bottom of the front foot to the top of the front foot. what view is it in? |
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| from the spine to the belly whats the view |
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| from the rear to the front, whats my view |
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| from the top of the back foot to the bottom of the back foot |
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| caudalcranial stifle joint, what do I measure |
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| Xiphoid Process; over the midline of the tip of the sternum |
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| docs ordered a dorsalplantar of a dog limb |
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| The small area of the target when which should the electrons collided on the anode is what. |
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| What term describes damaged to the body that manifested within the life of the recipient |
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| the electrons travel ____ to ____. |
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| in an xray tube the majority of the energy produce is in the form of |
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| the filament is located where |
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