Equine Quizzes

Question 1

T/F: radiographs are good for diagnosing specific soft tissue injuries in a MSK study

Answer 1

False- but they can give you clues of what soft tissue structures could be injured and can tell you where to look next

Question 2

T/F: radiographic projections are named after the path of x-ray beam from the generator to the plate

Answer 2

True

Question 3

T/F: it is impossible to tell a DLPMO from a DMPLO rad of the equine fetlock

Answer 3

True - this is why you need accurate marker placement and/or projection name

Question 4

What does the opacity on a radiograph depend on

Answer 4

1) physical density
2) atomic number
3) thickness of structure

Question 5

T/F: the crena marginalis is a normal convacity at the tip of the toe of P3

Answer 5

True

Question 6

What is missing from the list of Roentgen signs that we use to evaluate radiographs
Shape
marigin
opacity
location
number

Answer 6

Size

Question 7

What is the crena marginalis

Answer 7

a normal concavity at the tip of the toe of P3

Question 8

T/F: Collimation of your x-ray beam when taking the radiograph is the same as cropping the image to the same region after you have taken it (with regards to image quality)

Answer 8

false- there is improved image quality when collimating to a smaller area due to decreased scatter. It is also improved radion safety (decreased exposure)

Question 9

T/F: you can easily assess the position of P3 within the hoof capsule by just visually looking at the hoof

Answer 9

False- radiographs are required to definetively assess the position of P3 within the hoof capsule

Question 10

T/F: if a horse has clinical signs of laminitis, you will always see radiographic changes

Answer 10

False

Question 11

T/F: when taking oblique projections of the fetlock, we angle the beam up by 15-20 degrees to reduce superimposition of the sesamoids on proximal P1

Answer 11

false - we angle the beam down 15-20 degrees

Question 12

What soft tissue structure can be affected secondarily to horses with splint bone fractures

Answer 12

suspensory ligament

Question 13

T/F: you may not have any radiographic changes associated with proximal suspensory ligament injury

Answer 13

true

Question 14

T/F: the carpal bones that are displaces slightly proximally in a flexed lateral projection are the intermediate and 4th carpal bones

Answer 14

true

Question 15

T/F: sclerosis of the intermediate facet of the third carpal bone is most common in racehorses

Answer 15

false- it is more common to have sclerosis of the radial facet. this can predispsoe to fracture

Question 16

T/F: sunchondral bone lysis can be seen with septic joints, trauma, and DJD

Answer 16

True

Question 17

T/F: angular limb deformities are named around the joint distal to the deformity

Answer 17

False- named around the joint at the level of the deformity

Question 18

T/F: In a lateral projection of the stifle the larger/more prominent of the trochlear ridge is the lateral one

Answer 18

False. Medial = massive, lateral = flat

Question 19

T/F: the medial and lateral femorotibial joint spaces always communicate

Answer 19

false -rarely communicate.
the medial femorotibial and femoropatellar always communicate. the lateral femorotibial and femoropatellar joint spaces communicate 25% of the time

Question 20

T/F: osteochondrosis lesions can present as lucent defects, lucent defects with associated fragments and osseous cyst-like lesions

Answer 20

True

Question 21

What view do you see larry’s nose in

Answer 21

DMPLO of the tarsus

Question 22

What is larrys nose

Answer 22

the lateral trochlea seen in DMPLO

Question 23

T/F: the distal intermediate ridge of the tibia is the most common location for OCD/OC in the tarsus

Answer 23

true - the distal intermediate ridge is number 1

the lateral trochlear ridge of the talus is #2