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Rsdiology T2
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5 steps to process a film
1 developing
2 Rinsing/stop bath
3 fixing
4 washing
5 drying
whats the purpose of a tech chart
provides a consistant way of setting the proper exposures for a diagnostic radiograph
KvP range for extremities
55-65 KvP
KvP range abdomen
65-85 KvP
KvP range thorax
75-95KvP
KvP Range Pelvis
55-75 KvP
KvP Range Spine
70-90 KvP
types of xray units
Conventional
mounted
small portable
5 elements of xray production
1 source of production
2 means of accelerating electrons
3 free path for the passage of highspeed electrons
4 target in which electrons can interact
5 Containment area that contains a vacuum
MA
number of xrays ultimately being produced due to the heating filament
Kilovoltage peak kVp
speeding up of electrons
Penetration
xrays that have gone through the object and interacted w. the film
Absorption
xrays that do no not pass through object and do not interact w/ film
Radiograph
visible photographic record on film produced due to the passage of erays through an object or body
5 tissues most sensitive to radiation
1gonads
2 thyroid
3 lens of the eye
4 skin
5 blood forming organs
parts of the screen
base/support
refective layer
phosphor crystal layer
protective coating
layers of the cassette
cassette top
top padding
intensifying screen
film
intensifying screen
bot pad
lead foil
cassette bot
4 ways to increase rad. density
increase:
mA
kVp
developing time
temp of developer
contast influences
subject contrast
kvp
scatter radiation
film type
film fog
Doubly dark
Decrease kvp 15%
mAs 50%
1/2 doubly dark
decrease kvp 10%
mAs 30%
doubly light
^ kvp 15%
mAs 50%
1/2 doubly light
^kvp 10%
mAs 30%
Author
lynnsy
ID
152942
Card Set
Rsdiology T2
Description
belrea readiology
Updated
2012-05-08T18:01:11Z
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