EXAM REVIEW WITH CORRECT ANSWERS
University of Pennsylvania Hip improvement Program (PennHIP) - (answers)- Dogs can start being
evaluated at 16 weeks old
- Evaluated for distraction index, arthritis, and breed laxity ranking
Distraction Index - (answers)measure of hip laxity that looks at the distance the ball can be displaced
from the hip socket
Bone rule - (answers)The beam should be centered over the mid-section of the bone, and it should
include the joints at each end of the bone
Joint rule - (answers)all joint radiographs should be centered directly over the joint and should include
approximately one inch of each of the bones that make the joint
Thoracic Girdle - (answers)scapula and clavicle (shoulder)
How many dental x-rays are needed for the full mouth? - (answers)8-12
Where is the digital radiography sensor placed for dental images? - (answers)in the oral cavity with the
crown of the tooth on the sensor edge
positioning for dental radiographs - (answers)sternal, lateral, or dorsal recumbency
Parallel Technique - (answers)Similar to taking a lateral radiograph and is used to image the mandibular
fourth premolars and molars
Special Equipment for Exotics and small animals - (answers)- Positioning boards for birds
, - sedation meds
special films and
- cassettes for finer detail
- plexiglas
- velcro
-paper towel rolls
- acrylic tubes
Contrast Media - (answers)Materials that when given to an animal, will help show structures that are
normally hard to see
Positive Contrast - (answers)Shows up white on radiographs as it blocks x-rays from hitting the film
Negative Contrast - (answers)Shows up black on film since it readily allows x-rays to pass through
Survey Radiograph - (answers)Initial image before contrast study to ensure there is no gas or fecal
matter and to determine technique for the actual study
Ultrasound - (answers)Conversion of electrical energy into sound waves. Sound waves are directed to
the patient and reflect in different ways based on what they contact (ex: bone, fluid, muscle)
Sound waves - (answers)Can be described by their frequency in Hz and wavelengths
Most ultrasound machines operate at a frequency between 2-15MHz
Hyperechoic - (answers)areas that generate high intensity echoes and create a brighter image
Hypoechoic - (answers)areas that create little echo and create darker gray images