ABC Certified Orthotic Fitter Exam – Latest
Questions & Verified Answers for Top Scores
QUESTION 1
Which of the following best describes the primary function of an orthosis?
A. To replace a missing limb
B. To provide cosmetic improvement
C. To support, align, prevent, or correct deformities of the musculoskeletal system
D. To enhance athletic performance only
E. To permanently fuse joints in place
CORRECT ANSWER: C. To support, align, prevent, or correct deformities of
the musculoskeletal system
RATIONALE: An orthosis is an externally applied device used to modify the structural
and functional characteristics of the neuromuscular and skeletal systems. Its primary
function includes support, alignment, prevention, and correction of deformities.
QUESTION 2
A patient presents with drop foot. Which orthosis is most appropriate?
A. Knee-ankle-foot orthosis (KAFO)
B. Thoracolumbosacral orthosis (TLSO)
C. Ankle-foot orthosis (AFO)
D. Wrist-hand orthosis (WHO)
E. Hip abduction orthosis
CORRECT ANSWER: C. Ankle-foot orthosis (AFO)
RATIONALE: An AFO is the standard orthosis for drop foot. It holds the foot in a neutral
or slightly dorsiflexed position, preventing the toe from dragging during the swing phase
of gait.
QUESTION 3
The term "orthosis" is derived from which language?
,A. Latin
B. French
C. Greek
D. Arabic
E. German
CORRECT ANSWER: C. Greek
RATIONALE: The term "orthosis" comes from the Greek word "ortho," meaning straight
or correct, reflecting the device's purpose of correcting or aligning body structures.
QUESTION 4
Which of the following is a contraindication for orthotic fitting?
A. Muscle weakness
B. Joint instability
C. Active skin infection at the orthotic interface
D. Spinal stenosis
E. Flat foot deformity
CORRECT ANSWER: C. Active skin infection at the orthotic interface
RATIONALE: An active skin infection at the contact area is a contraindication because
the orthosis can worsen the infection, cause further skin breakdown, or spread bacteria.
QUESTION 5
What does KAFO stand for?
A. Knee-Ankle-Foot Orthosis
B. Knee-Arm-Foot Orthosis
C. Knee-Ankle-Finger Orthosis
D. Kinetic-Ankle-Foot Orthosis
E. Knee-Arch-Foot Orthosis
, CORRECT ANSWER: A. Knee-Ankle-Foot Orthosis
RATIONALE: KAFO stands for Knee-Ankle-Foot Orthosis. It extends from the thigh to
the foot and is used to control knee, ankle, and foot alignment and movement.
QUESTION 6
Which plane of motion divides the body into left and right halves?
A. Transverse plane
B. Frontal plane
C. Sagittal plane
D. Coronal plane
E. Horizontal plane
CORRECT ANSWER: C. Sagittal plane
RATIONALE: The sagittal plane divides the body into left and right halves. Movements
in this plane include flexion and extension, which are critical considerations in orthotic
design.
QUESTION 7
A patient with scoliosis would most likely be fitted with which orthosis?
A. AFO
B. TLSO
C. KAFO
D. Cervical orthosis
E. Foot orthosis
CORRECT ANSWER: B. TLSO
RATIONALE: A Thoracolumbosacral Orthosis (TLSO) is the standard orthosis used for
scoliosis management. It applies corrective forces to the spine to prevent curve
progression.
, QUESTION 8
Which material is most commonly used in the fabrication of custom foot orthoses?
A. Steel
B. Polypropylene
C. Titanium
D. Latex
E. Silicone gel
CORRECT ANSWER: B. Polypropylene
RATIONALE: Polypropylene is widely used in custom foot orthoses due to its
thermoplastic properties, durability, lightweight nature, and ability to be molded to
patient-specific contours.
QUESTION 9
The Milwaukee brace is designed to treat which condition?
A. Drop foot
B. Plantar fasciitis
C. Scoliosis and kyphosis
D. Carpal tunnel syndrome
E. Knee osteoarthritis
CORRECT ANSWER: C. Scoliosis and kyphosis
RATIONALE: The Milwaukee brace is a cervicothoracolumbosacral orthosis (CTLSO)
designed to treat scoliosis and kyphosis, particularly in growing children, by applying
corrective forces to the spine.
QUESTION 10
What is the primary goal of a patellofemoral orthosis?
A. To immobilize the hip joint
B. To realign and stabilize the patella
Questions & Verified Answers for Top Scores
QUESTION 1
Which of the following best describes the primary function of an orthosis?
A. To replace a missing limb
B. To provide cosmetic improvement
C. To support, align, prevent, or correct deformities of the musculoskeletal system
D. To enhance athletic performance only
E. To permanently fuse joints in place
CORRECT ANSWER: C. To support, align, prevent, or correct deformities of
the musculoskeletal system
RATIONALE: An orthosis is an externally applied device used to modify the structural
and functional characteristics of the neuromuscular and skeletal systems. Its primary
function includes support, alignment, prevention, and correction of deformities.
QUESTION 2
A patient presents with drop foot. Which orthosis is most appropriate?
A. Knee-ankle-foot orthosis (KAFO)
B. Thoracolumbosacral orthosis (TLSO)
C. Ankle-foot orthosis (AFO)
D. Wrist-hand orthosis (WHO)
E. Hip abduction orthosis
CORRECT ANSWER: C. Ankle-foot orthosis (AFO)
RATIONALE: An AFO is the standard orthosis for drop foot. It holds the foot in a neutral
or slightly dorsiflexed position, preventing the toe from dragging during the swing phase
of gait.
QUESTION 3
The term "orthosis" is derived from which language?
,A. Latin
B. French
C. Greek
D. Arabic
E. German
CORRECT ANSWER: C. Greek
RATIONALE: The term "orthosis" comes from the Greek word "ortho," meaning straight
or correct, reflecting the device's purpose of correcting or aligning body structures.
QUESTION 4
Which of the following is a contraindication for orthotic fitting?
A. Muscle weakness
B. Joint instability
C. Active skin infection at the orthotic interface
D. Spinal stenosis
E. Flat foot deformity
CORRECT ANSWER: C. Active skin infection at the orthotic interface
RATIONALE: An active skin infection at the contact area is a contraindication because
the orthosis can worsen the infection, cause further skin breakdown, or spread bacteria.
QUESTION 5
What does KAFO stand for?
A. Knee-Ankle-Foot Orthosis
B. Knee-Arm-Foot Orthosis
C. Knee-Ankle-Finger Orthosis
D. Kinetic-Ankle-Foot Orthosis
E. Knee-Arch-Foot Orthosis
, CORRECT ANSWER: A. Knee-Ankle-Foot Orthosis
RATIONALE: KAFO stands for Knee-Ankle-Foot Orthosis. It extends from the thigh to
the foot and is used to control knee, ankle, and foot alignment and movement.
QUESTION 6
Which plane of motion divides the body into left and right halves?
A. Transverse plane
B. Frontal plane
C. Sagittal plane
D. Coronal plane
E. Horizontal plane
CORRECT ANSWER: C. Sagittal plane
RATIONALE: The sagittal plane divides the body into left and right halves. Movements
in this plane include flexion and extension, which are critical considerations in orthotic
design.
QUESTION 7
A patient with scoliosis would most likely be fitted with which orthosis?
A. AFO
B. TLSO
C. KAFO
D. Cervical orthosis
E. Foot orthosis
CORRECT ANSWER: B. TLSO
RATIONALE: A Thoracolumbosacral Orthosis (TLSO) is the standard orthosis used for
scoliosis management. It applies corrective forces to the spine to prevent curve
progression.
, QUESTION 8
Which material is most commonly used in the fabrication of custom foot orthoses?
A. Steel
B. Polypropylene
C. Titanium
D. Latex
E. Silicone gel
CORRECT ANSWER: B. Polypropylene
RATIONALE: Polypropylene is widely used in custom foot orthoses due to its
thermoplastic properties, durability, lightweight nature, and ability to be molded to
patient-specific contours.
QUESTION 9
The Milwaukee brace is designed to treat which condition?
A. Drop foot
B. Plantar fasciitis
C. Scoliosis and kyphosis
D. Carpal tunnel syndrome
E. Knee osteoarthritis
CORRECT ANSWER: C. Scoliosis and kyphosis
RATIONALE: The Milwaukee brace is a cervicothoracolumbosacral orthosis (CTLSO)
designed to treat scoliosis and kyphosis, particularly in growing children, by applying
corrective forces to the spine.
QUESTION 10
What is the primary goal of a patellofemoral orthosis?
A. To immobilize the hip joint
B. To realign and stabilize the patella
