Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

rt 115

distortion

QuestionAnswer
distortion is a misrepresentation of size and shape
size distortion in radiography can be _____ only magnification
size distortion is controlled by SID, OID and radiographic distances
as size distortion decreases, the resolution of recorded detail increases
the _____ the SID, the _______ the magnification greater, smaller
examinations of body parts with a large inherent OID warrant a _________ whenever possible large SID
which examinations DOES NOT exhibit an inherently large OID AP lumbar spine
as OID increases and SID remains constant, entrance skin exposure (ESE) increases
large patients receive a greater exposure than small patients because their: SOD is decreased, OID is increased, and entrance skin surface is closer to the source
the magnification factor for a radiographic procedure is calculated at 1.25. It may be assumed that there is a ________ magnification of the object size 125%
what occurs when the TUBE or the image receptor is not properly aligned elongation
what occurs when the PART is improperly aligned foreshortening
proper alignment is achieved when the central ray is ______ to the part and _______ to the image receptor perpendicular, perpendicular
whyen the position of the part is reversed, the direction of the tube angle must be ______ to maintain the relationship reversed
because the xray beam is divergent, minification is impossible
xray tube angulations inherently change the SID, and introduce magnification to some degree
in order to achieve a true SID of 40" with an x-ray tube angle of 30 degrees, the overhead scale should read: 34.6"
performing a routine chest radiograph in the anterior posterior (AP) projection will produce improved resolution of the thoracic spine
a renal calculus that measures 0.2mm in size cannot be visualized with an effective focal spot of 0.5mm focal spot due to penumbral overlap
opening of the intervertebral joints of the cervical spine would best be accomplished with the patient in an AP projection with a 40" SID
object size ratio between image size and MF
kidneys best seen with patient supine
SID/OID MF (magnification factor)
patella inherently magnified in AP projection
SID/MF SOD
Created by: jhill106