Viewing Radiographs (Quiz 1)

Question 1

If film has a backwards R on the top left corner, then which direction was it taken in?

Answer 1

A-> P

Question 2

If film has an R on the top right corner, then how will the film be viewed?

Answer 2

P-> A

Question 3

Why do chiropractors read scans from P-> A most of the time?

Answer 3

bc we’re not looking for pathology (which is visible A->P)

Question 4

If theres no markings on a scan to indicate direction, how do you know the side of the patient?

Answer 4

-fillings
-heart shadow
-the apex of heart is always L
-the R kidney is higher than the L

Question 5

What does the position of the ball indicate?

Answer 5

If the ball is low then it means pt is laying down, high up the pt is weight bearing/standing

Question 6

Why do chiropractors want scans to be done standing as opposed to having the pt lay down?

Answer 6

bc when you’re laying down all vertebrae are posterior and this is incorrect for seeing misalignments, anomalies, etc and can cause you to overadjust

Question 7

What info is required to be imprinted on a scan?

Answer 7

-name/address of radiologist or institution
-date of x-ray
-patient name
-patient case number
-optional= include pt age

Question 8

What are the angle of projections for scans?

Answer 8

-A->P
-base posterior
-lateral
-nasium
-oblique

Question 9

What are the different contrasts of scans called?

quiz q

Answer 9

short scale (less shades of grey/more density) and long scale (more shades of grey/ less density (can see more soft tissue))

Question 10

How should you be surveying periosteum (soft tissue covering of bone) on a scan?

quiz q

Answer 10

no visible shadow= normal periosteum

visible shadow= pathology

Question 11

What should the cortex of bones look like on x-rays?

quiz q

Answer 11

bright, white, unbroken, and smooth line

Question 12

What are the 5 densities of x-ray?

Answer 12

4 natural densities:
1) bone
2) soft tissue
3) fat
4) air

unnatural density= metal

Question 13

Do we prefer long scale or short scale contrast on xrays?

Answer 13

short scale (more density)

Question 14

What is the medullary region?

Answer 14

-soft spongy center
-more bright white than soft tissues but not as bright white as cortex

Question 15

Do adults or children have open epiphyseal growth plates?

Answer 15

children, if adults do then theres a problem (usually endocrine issue, but they probably know about it already)

Question 16

What age do epiphyseal growth plates close in males and females?

Answer 16

males= 17-20 y/o

females= 15-18 y/o

Question 17

What should articulations look like in xrays?

Answer 17

smooth, even, and clear