RAD 112 FINAL EXAM 2/3 UPPER EXTREMITY
Where does the CR enter when performing a PA hand? - Answers :perpendicular to 3rd
MCP joint
What is the degree of rotation for a PA oblique hand? - Answers :45 degrees
How can a PA oblique hand be seen? - Answers :some overlap of distal 3rd, 4th, and
5th metacarpals
What position is the thumb in when performing a fan lateral hand? - Answers :PA
Why are lateral hand positions performed? - Answers :foreign bodies
metacarpal fractures
What are the clinical indications for performing AP bilateral hands? - Answers
:rheumatoid arthritis
Where is the CR directed for AP bilateral hands? - Answers :midway between 5th MCP
joints
Where is the CR directed for a PA wrist? - Answers :midcarpal area
Why do we make a fist when performing a PA wrist? - Answers :to keep wrist in contact
with the IR
Why are AP wrists performed? - Answers :better demonstrates carpal interspaces
What is the degree of rotation for a PA oblique wrist? - Answers :45 degrees
What should be well visualized when evaluating a PA oblique wrist? - Answers
:trapezium and scaphoid
How can a lack of rotation be determined when evaluating a lateral wrist? - Answers
:radius and ulna directly superimposed
What is the degree of CR angulationfor a PA scaphoid ulnar deviation? - Answers :10-
15 toward elbow entering scaphoid
Why are PA wrist radial deviation positions performed? - Answers :demonstration of
medial carpal fx
Why are carpal canal positions performed? - Answers :carpal tunnel syndrome
, What is the CR angulation and direction for a carpal canal position? - Answers :25-30
degrees entering 3rd MC
Where is the CR directed for a PA finger? - Answers :PIP joint
What is the degree of rotation for a PA oblique finger? - Answers :45 degrees
How can a lack of rotation be determined when evaluating a lateral finger? - Answers
:concave appearance on anterior surface of phalange
Where is the CR directed for an AP thumb? - Answers :MCP joint
What position is the thumb in naturally? - Answers :oblique
Why are AP forearm images performed? - Answers :to avoid radial crossover
What must be included in all long bone images? - Answers :both joints
What is the relationship between the humeral epicondyles and the IR when performing
an AP forearm? - Answers :parallel
Where is the CR directed when performing an AP forearm? - Answers :perpendicular to
mid forearm
What is the degree of elbow flexion when performing a lateral forearm? - Answers :90
degrees
What is the relationship between the humeral epicondyles and the IR when performing
a lateral forearm? - Answers :perpendicular
Where is the CR directed when performing an AP elbow? - Answers :perpendicular to
mid elbow
What is the degree of rotation when performing an AP oblique elbow? - Answers :45
degrees
Name the 3 concentric arches. - Answers :trochlea sulcus
double ridges of capitulum and trochlea
trochlear notch of ulna
What are the two positions for an AP elbow partial flexion? - Answers :one with forearm
parallel to IR and one with humerus parallel to IR
Where is the CR directed when performing an acute flexion elbow when the distal
humerus is of interest? - Answers :perpendicular to IR midway between epicondyles
Where does the CR enter when performing a PA hand? - Answers :perpendicular to 3rd
MCP joint
What is the degree of rotation for a PA oblique hand? - Answers :45 degrees
How can a PA oblique hand be seen? - Answers :some overlap of distal 3rd, 4th, and
5th metacarpals
What position is the thumb in when performing a fan lateral hand? - Answers :PA
Why are lateral hand positions performed? - Answers :foreign bodies
metacarpal fractures
What are the clinical indications for performing AP bilateral hands? - Answers
:rheumatoid arthritis
Where is the CR directed for AP bilateral hands? - Answers :midway between 5th MCP
joints
Where is the CR directed for a PA wrist? - Answers :midcarpal area
Why do we make a fist when performing a PA wrist? - Answers :to keep wrist in contact
with the IR
Why are AP wrists performed? - Answers :better demonstrates carpal interspaces
What is the degree of rotation for a PA oblique wrist? - Answers :45 degrees
What should be well visualized when evaluating a PA oblique wrist? - Answers
:trapezium and scaphoid
How can a lack of rotation be determined when evaluating a lateral wrist? - Answers
:radius and ulna directly superimposed
What is the degree of CR angulationfor a PA scaphoid ulnar deviation? - Answers :10-
15 toward elbow entering scaphoid
Why are PA wrist radial deviation positions performed? - Answers :demonstration of
medial carpal fx
Why are carpal canal positions performed? - Answers :carpal tunnel syndrome
, What is the CR angulation and direction for a carpal canal position? - Answers :25-30
degrees entering 3rd MC
Where is the CR directed for a PA finger? - Answers :PIP joint
What is the degree of rotation for a PA oblique finger? - Answers :45 degrees
How can a lack of rotation be determined when evaluating a lateral finger? - Answers
:concave appearance on anterior surface of phalange
Where is the CR directed for an AP thumb? - Answers :MCP joint
What position is the thumb in naturally? - Answers :oblique
Why are AP forearm images performed? - Answers :to avoid radial crossover
What must be included in all long bone images? - Answers :both joints
What is the relationship between the humeral epicondyles and the IR when performing
an AP forearm? - Answers :parallel
Where is the CR directed when performing an AP forearm? - Answers :perpendicular to
mid forearm
What is the degree of elbow flexion when performing a lateral forearm? - Answers :90
degrees
What is the relationship between the humeral epicondyles and the IR when performing
a lateral forearm? - Answers :perpendicular
Where is the CR directed when performing an AP elbow? - Answers :perpendicular to
mid elbow
What is the degree of rotation when performing an AP oblique elbow? - Answers :45
degrees
Name the 3 concentric arches. - Answers :trochlea sulcus
double ridges of capitulum and trochlea
trochlear notch of ulna
What are the two positions for an AP elbow partial flexion? - Answers :one with forearm
parallel to IR and one with humerus parallel to IR
Where is the CR directed when performing an acute flexion elbow when the distal
humerus is of interest? - Answers :perpendicular to IR midway between epicondyles
