Radiology ARRT Exam Questions with
Correct Answers
What is the Salter-Harris Classification? Most common Salter-Harris fracture? -
ANSWER ✔✔The Salter-Harris Classification of Fractures is for the prognosis of
the fracture. Type I offers the best prognosis and Type V the worst.
Type II - Most common fracture. Through the epiphyseal plate and extends into
the metaphysis.
The most common type of shoulder dislocation is? - ANSWER ✔✔Anterior is the
most common type of shoulder dislocation.
The shoulder is the most common joint in the body to dislocate and most of the
dislocations are anterior. The humeral head dislocates anterior and inferior to
the glenoid fossa and commonly is located beneath the coracoid process.
Lateral radiograph -- look down the spine, looks more lucent. If it looks more
dense? - ANSWER ✔✔Pleural effusion or something
The CP angles should be sharp, blunting may indicate pleural effusion
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,Pleural effusion is first seen int he posterior costophrenic gutters on the lateral
view.
Positive fat pad sign? - ANSWER ✔✔Falls down on their elbow, fat pad sign --
elevation of the fat pad along the anterior aspect of the humerus, visualization
of the posterior fat pad, strongly suggestive of a fracture w/in the elbow.
Posterior and anterior fat pads - ANSWER ✔✔
Colles Fracture? - ANSWER ✔✔Colles' Fracture - this is a fracture of the distal
radius, which is usually within one inch of the articular surface with posterior
displacement of the distal fragment. Frequently there is accompanying fracture
of the ulnar styloid.
What is the most common bone in the wrist to fracture? - ANSWER
✔✔Scaphoid - pain at the anatomical snuff box with scaphoid fracture
a. Most commonly Fx carpal bone
b. Proximal pole has no blood supply :: usually can see aseptic necrosis of the
proximal fragment = increased density of the proximal fragment
Wrist bones - ANSWER ✔✔
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,Elderly patient can't bear wait on pelvis? - ANSWER ✔✔Fracture unless proven
otherwise. plain film may not show the fracture.
Which of the following isn't associated w/ child abuse? (1) Spiral fractures of the
femur (2) Posterior Rib Fractures (3) Metaphyseal corner fractures (4) Spiral
fractures of the tibia (5) All of these - ANSWER ✔✔Spiral fracture of the tibia =
Toddler's fracture.
Toddler's Fracture - A fracture of the tibia in young children beginning to walk.
Most commonly a spiral type fracture involving the distal shaft of the tibia.
Buckle type fracture involving the metaphyseal portion of the proximal tibia is
also common.
Maissoneuve Fx? - ANSWER ✔✔
What is a DEXA Scan? - ANSWER ✔✔The preferred method for determining
bone mass is the Dual Energy X-Ray Absorptiometry Scan or DEXA. This utilizes
two X-Ray energy sources to determine the bone mineral content or bone mass.
The DEXA scan defines osteoporosis as a bone mineral density (T Score) that is
2.5 SD below the mean peak value in younger adults. The Z Score is also
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, determined and is a comparison with the mean value in normal subjects the
same age and sex.
The severity of osteoporosis is determined by the bone values.
* -1.0 to -2.0 mild
* -2.0 to -3.0 moderate
* -3.0 to -4.0 marked
* -4.0 to -5.0 severe
Hyperparathyroidism - Hallmark? - ANSWER ✔✔The hallmark of
hyperparathyroidism in the skeleton is **subperiosteal resorption of bone,**
which is particularly pronounced on the **radial side of the middle phalanx,
middle finger.** Views of the hand are very important in demonstrating
subperiosteal resorption. There is also penciling of the tufts of the distal
phalanges and penciling of the distal aspects of the clavicles. Subperiosteal
resorption may occur along the medial aspects of the neck of the humerus and
femur as well as in the hand. There is loss of the lamina dura about the teeth
and there is a generalized lucency of the skeleton. As finer trabecula disappear,
the cortex also thins. Localized destructive areas may occur and are known as
brown tumors.
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Correct Answers
What is the Salter-Harris Classification? Most common Salter-Harris fracture? -
ANSWER ✔✔The Salter-Harris Classification of Fractures is for the prognosis of
the fracture. Type I offers the best prognosis and Type V the worst.
Type II - Most common fracture. Through the epiphyseal plate and extends into
the metaphysis.
The most common type of shoulder dislocation is? - ANSWER ✔✔Anterior is the
most common type of shoulder dislocation.
The shoulder is the most common joint in the body to dislocate and most of the
dislocations are anterior. The humeral head dislocates anterior and inferior to
the glenoid fossa and commonly is located beneath the coracoid process.
Lateral radiograph -- look down the spine, looks more lucent. If it looks more
dense? - ANSWER ✔✔Pleural effusion or something
The CP angles should be sharp, blunting may indicate pleural effusion
Page 1 of 74
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619652435. TERMS OF USE. PRIVACY STATEMENT. ALL RIGHTS RESERVED
,Pleural effusion is first seen int he posterior costophrenic gutters on the lateral
view.
Positive fat pad sign? - ANSWER ✔✔Falls down on their elbow, fat pad sign --
elevation of the fat pad along the anterior aspect of the humerus, visualization
of the posterior fat pad, strongly suggestive of a fracture w/in the elbow.
Posterior and anterior fat pads - ANSWER ✔✔
Colles Fracture? - ANSWER ✔✔Colles' Fracture - this is a fracture of the distal
radius, which is usually within one inch of the articular surface with posterior
displacement of the distal fragment. Frequently there is accompanying fracture
of the ulnar styloid.
What is the most common bone in the wrist to fracture? - ANSWER
✔✔Scaphoid - pain at the anatomical snuff box with scaphoid fracture
a. Most commonly Fx carpal bone
b. Proximal pole has no blood supply :: usually can see aseptic necrosis of the
proximal fragment = increased density of the proximal fragment
Wrist bones - ANSWER ✔✔
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,Elderly patient can't bear wait on pelvis? - ANSWER ✔✔Fracture unless proven
otherwise. plain film may not show the fracture.
Which of the following isn't associated w/ child abuse? (1) Spiral fractures of the
femur (2) Posterior Rib Fractures (3) Metaphyseal corner fractures (4) Spiral
fractures of the tibia (5) All of these - ANSWER ✔✔Spiral fracture of the tibia =
Toddler's fracture.
Toddler's Fracture - A fracture of the tibia in young children beginning to walk.
Most commonly a spiral type fracture involving the distal shaft of the tibia.
Buckle type fracture involving the metaphyseal portion of the proximal tibia is
also common.
Maissoneuve Fx? - ANSWER ✔✔
What is a DEXA Scan? - ANSWER ✔✔The preferred method for determining
bone mass is the Dual Energy X-Ray Absorptiometry Scan or DEXA. This utilizes
two X-Ray energy sources to determine the bone mineral content or bone mass.
The DEXA scan defines osteoporosis as a bone mineral density (T Score) that is
2.5 SD below the mean peak value in younger adults. The Z Score is also
Page 3 of 74
COPYRIGHT©JOSHCLAY 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER:
619652435. TERMS OF USE. PRIVACY STATEMENT. ALL RIGHTS RESERVED
, determined and is a comparison with the mean value in normal subjects the
same age and sex.
The severity of osteoporosis is determined by the bone values.
* -1.0 to -2.0 mild
* -2.0 to -3.0 moderate
* -3.0 to -4.0 marked
* -4.0 to -5.0 severe
Hyperparathyroidism - Hallmark? - ANSWER ✔✔The hallmark of
hyperparathyroidism in the skeleton is **subperiosteal resorption of bone,**
which is particularly pronounced on the **radial side of the middle phalanx,
middle finger.** Views of the hand are very important in demonstrating
subperiosteal resorption. There is also penciling of the tufts of the distal
phalanges and penciling of the distal aspects of the clavicles. Subperiosteal
resorption may occur along the medial aspects of the neck of the humerus and
femur as well as in the hand. There is loss of the lamina dura about the teeth
and there is a generalized lucency of the skeleton. As finer trabecula disappear,
the cortex also thins. Localized destructive areas may occur and are known as
brown tumors.
Page 4 of 74
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619652435. TERMS OF USE. PRIVACY STATEMENT. ALL RIGHTS RESERVED
