quiz taken
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| what are 2 things that the collimator does? | the beam is small and reduces scatter of radiation.
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| x-rays have a shorter/ longer wavelength than visible light ? | shorter
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| focal spot | the spot which is to be x-rayed
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| penumbra | area around the x- ray, such as skin
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| tube overload | when it over heats or cracks
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| arching | metal deposit inner envolope which creates 2nd envelope
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| MPD | maximum permissible dose
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| MPD | is the dose one person can handle over a year
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| what are the 3 exposure factors? | mA, S, kVp
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| the tube of the x-ray machine should stay between what distance away from the patient? | 36in to 40 in
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| when is the fetus most senitive to xrays ? | the first 6 weeks
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| what is the MPD in Sv/yr that an individual over 18 yrs of age can recieve? | 0.05
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| what are 5 ways to decrease your exposure to radiation? | stay far away , one shot, v time, rotate personel, good technique charting
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| 4 things you should be wearing when taking an x-ray? | thorasic/ abdomenal lead vest, thyroid shield, hand shields, radiation badge.
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| how thick should all of your lead equipment be? | 0.05mm
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| how often should you radiograph you gloves to make sure they don't have cracks? | every 6 months
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| how often should you radiograph your gown/thyroid shields to make sure theydon't have crack? | every year
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| what are the 3 types of radiation monitoring devices? | radiation pen, film badge, termodecilmeter(TLD)
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| what is on the back of the cassette is made of? | lead
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| what can you use to clean the outside of the cassette? | soap and water
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| what are the 4 layers of an x-ray screen? | base layer, refeliv layer, crystal layer, protective layer
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| slow speed? | optimum detail
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| medium speed? | most common, good resolution, relatively low exposure
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| fast speed? | reduce exposure time, penetrate thick tissues
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| blue films need a what color safe light ? | amber
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| the green film needs what color safelight? | red
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| what is a latent image? | invisible image after exposure but before developing
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| what is a direct safelight? | the light is facing down
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| what is a indirect safelight? | when the light is facing up to the ceiling
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| why should you never mix chemicals in adark room? | because you can't see and can splash the chemicals in your eyes.
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| what are the 5 steps in manual developing? | fixing, developing, dry, water, hanging on clip
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| what are the 3 chemicals in our automatic processor? | fixer, developer, water
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| what is the optimal temp. for all the chemicals in manual processing ? | 68 degrees
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| what is the optimal temp. for all the chemicals in manual processing? | 95 degrees
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| what are the 4 things required on x-ray label? | clinic name, date, owner, pet
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| aphoto labeler is used when? | after exposure and before developing
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| what type of x-rays labeling doesn't hold up in court? | permant marker
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| what are the 6 degrees of radiograph evaluaion? | landmarks, positioning, presantation, technique, collimation
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| when looking at a finished lateral x-ray, the head should be to the left or right on the view? | left
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| when looking at a finish v/d x-rays, the patients right should match up our left or right? | left
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| what are the 2 types of technique charts? | mAs varible, kVp varible
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| what are 2 reasons for making a technique chart? | to help get the measurment correct the first time to reduce exposure and better
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| what type of dog should be use when making a technique chart? | medium 40 - 50 lbs
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| what size envelope should be used when filing? | 14 by 17
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| what should you do to the patient before x-raying ? | measure the patient
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| what is concidered table top? | 1cm to 10 cm
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| what is concider bucky? | 11cm and up
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| where does the cassette go when taking a talbe top radiograph? | under the patient on the table
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| wher does the film go for bucky patients? | in the drawer under the table
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| which side of cassette towards the tube of the x-rays machine ? | black
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| where should the metal plate in the cassette always be during a x-ray? | upper left corner
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| v/d abdomen | pt is on their back, 3 fingers up the sternum to the hips
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| lateral abdomen | pt is on their side, 3 fingers the sternum to the hips
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| v/d thorax | pt is on their back, main beam from neck to the diaphragm
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| lateral thorax | pt on their sid, beam behind the scapula
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| a/p carpus | pt is sternal, bot front legs in view for comparison
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| lateral elbow | pt is on their side, taking pic of the limb
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| OFA hips | pt laying on their back, 2 lumbar vert. legs pulled stright, rotated inwards
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| the cathode is ? | -
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| anode is | +
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| the effective focal spot size is _____ then the actualfocal spot. | smaller
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| penumbra | around the x-ray such as skin
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| what is the filament like part of the xray machine made of? | tungstin
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| what does mA mean? | millamperage
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| what are 2 ways of restraining a horse for radiograph? | knockonthe head , lifting the leg
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| what are the 5 Ps | pull off shoe, pick out the hoof, pare the hoof, pack hoof, place the hoof on wooden box
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| negative contrast is what color? | black - example is air
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| positive contrast is what color? | white- example baiumn
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| when is the barium containdicated and why? | when there is tear because it can be toxic to the rest of the body
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| which is best for diagnosing spinal injuries ? | myelogram because you can see better to the disc
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| what are the 4 layers of intensifying screen? | protective, base, phosphor, reflecting
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