ABC - Prosthetic Assistant
Exam Review Guide EXAM
Questions and Answers
(2026-2027)
2026
Master Exam Prep Bundle
(Verified Questions & Answers)
A+ Grade Guaranteed
,Standard BK Alignment Flexion 5°
Adduction 5°
Anterior Socket 1/2 to 1 1/4in
Inset Foot 1/2 in
External Toe Rotation 5-7°
What causes Medial Proximal and Lateral Distal Pressure Abducted Socket
(MP & LD) Inset Foot
Everted Foot
Internally Rotated Foot
What causes Medial Distal and Lateral Proximal Pressure Adducted Socket
(MD & LP) Outset Foot
Inverted Foot
External Rotated Foot
What causes Anterior Distal and Posterior Proximal Flexed Socket
Pressure (AD & PP) Socket Too Anterior
Foot Too Posterior
Dorsiflexed Foot
Heel Too Tall or Too Stiff
What causes Anterior Proximal and Posterior Distal Extended Socket
Pressure (AP & PD) Socket Too Posterior
Foot Too Anterior
Plantarflexed Foot
Heel Too Soft or Too Short
How can you correct a pylon that is leaning medially? Abduct the socket
Evert the foot
How can you correct a pylon that is leaning laterally? Adduct the socket
Invert the foot
At heel strike, what causes the ball of the foot to be DF Stride length too long
more than 1-11/2"? Faulty suspension
Excessive socket flexion
At heel strike, what causes the knee to be fully extended (it Faulty suspension
should be at 5-10°)? Heel lever arm too short
Heel cushion too soft
How do you adjust a patient that is fully extended at heel Lengthen heel lever arm
strike? Stiffer heel cushion
During heel contact to flat foot, what may cause anterior Excessive use of knee extensors
distal pressure? Socket posterior brim too low
AP of socket too large
During heel contact to foot flat, what could cause knee heel lever arm too long
"jack knives" abruptly?
During midstance, what would cause lateral trunk bend Hip pathology
exceeds 1" at the head? Foot outset too far laterally
Prosthesis too short
2026
, During midstance, what would cause wide gait? Bad habit
Foot outset too far laterally
Hip abductor pathology
Prosthesis 1" or more longer
During midstance, what would cause inversion or eversion Improper adduction or abduction of the socket
of foot walking on lateral or medial border of shoe? Loose socket
During midstance, what would cause lateral displacement Loose socket medial lateral
exceeds 1/2"? Foot excessively inset
During midstance, what would cause no lateral Foot too far outset
displacement or displaced medially? Pain in fibula nerve
Very short residual limb
Knee joint pathology
What would cause the knee to go into extension during Toe lever arm is too long
heel rise?
During toe off, what would make the patient feel like they Foot too posterior
are "dropping off"? Short keel in foot
Heel of shoe too high
Dorsiflexing the foot is the same as Flexing the socket
Heel too high
Heel too rigid
Plantarflexing the foot is the same as Extending the socket
Heel too short
Heel too soft
How do you correct medial distal and lateral pressure? Abduct socket
Inset foot
Evert foot
Internally rotate foot
How do you correct medial proximal and lateral distal Adduct the socket
pressure? Outset foot
Invert foot
Externally rotate foot
How do you correct anterior distal and posterior proximal Extend socket
pressure? Move socket posterior
Plantarflex foot
Shorten heel
Soften heel bumper
How do you correct anterior proximal and posterior distal Flex socket
pressure? Move socket anterior
Dorsiflex socket
Higher heel
Stiffen heel bumper
A PT with TT prosthesis complains during ambulation of The prosthetic socket is in excessive extension
pressure on the anterior distal end of the residuum.
Physical examination reveals a reddened area to their
residual limb. What could be causing the pain?
2026
Exam Review Guide EXAM
Questions and Answers
(2026-2027)
2026
Master Exam Prep Bundle
(Verified Questions & Answers)
A+ Grade Guaranteed
,Standard BK Alignment Flexion 5°
Adduction 5°
Anterior Socket 1/2 to 1 1/4in
Inset Foot 1/2 in
External Toe Rotation 5-7°
What causes Medial Proximal and Lateral Distal Pressure Abducted Socket
(MP & LD) Inset Foot
Everted Foot
Internally Rotated Foot
What causes Medial Distal and Lateral Proximal Pressure Adducted Socket
(MD & LP) Outset Foot
Inverted Foot
External Rotated Foot
What causes Anterior Distal and Posterior Proximal Flexed Socket
Pressure (AD & PP) Socket Too Anterior
Foot Too Posterior
Dorsiflexed Foot
Heel Too Tall or Too Stiff
What causes Anterior Proximal and Posterior Distal Extended Socket
Pressure (AP & PD) Socket Too Posterior
Foot Too Anterior
Plantarflexed Foot
Heel Too Soft or Too Short
How can you correct a pylon that is leaning medially? Abduct the socket
Evert the foot
How can you correct a pylon that is leaning laterally? Adduct the socket
Invert the foot
At heel strike, what causes the ball of the foot to be DF Stride length too long
more than 1-11/2"? Faulty suspension
Excessive socket flexion
At heel strike, what causes the knee to be fully extended (it Faulty suspension
should be at 5-10°)? Heel lever arm too short
Heel cushion too soft
How do you adjust a patient that is fully extended at heel Lengthen heel lever arm
strike? Stiffer heel cushion
During heel contact to flat foot, what may cause anterior Excessive use of knee extensors
distal pressure? Socket posterior brim too low
AP of socket too large
During heel contact to foot flat, what could cause knee heel lever arm too long
"jack knives" abruptly?
During midstance, what would cause lateral trunk bend Hip pathology
exceeds 1" at the head? Foot outset too far laterally
Prosthesis too short
2026
, During midstance, what would cause wide gait? Bad habit
Foot outset too far laterally
Hip abductor pathology
Prosthesis 1" or more longer
During midstance, what would cause inversion or eversion Improper adduction or abduction of the socket
of foot walking on lateral or medial border of shoe? Loose socket
During midstance, what would cause lateral displacement Loose socket medial lateral
exceeds 1/2"? Foot excessively inset
During midstance, what would cause no lateral Foot too far outset
displacement or displaced medially? Pain in fibula nerve
Very short residual limb
Knee joint pathology
What would cause the knee to go into extension during Toe lever arm is too long
heel rise?
During toe off, what would make the patient feel like they Foot too posterior
are "dropping off"? Short keel in foot
Heel of shoe too high
Dorsiflexing the foot is the same as Flexing the socket
Heel too high
Heel too rigid
Plantarflexing the foot is the same as Extending the socket
Heel too short
Heel too soft
How do you correct medial distal and lateral pressure? Abduct socket
Inset foot
Evert foot
Internally rotate foot
How do you correct medial proximal and lateral distal Adduct the socket
pressure? Outset foot
Invert foot
Externally rotate foot
How do you correct anterior distal and posterior proximal Extend socket
pressure? Move socket posterior
Plantarflex foot
Shorten heel
Soften heel bumper
How do you correct anterior proximal and posterior distal Flex socket
pressure? Move socket anterior
Dorsiflex socket
Higher heel
Stiffen heel bumper
A PT with TT prosthesis complains during ambulation of The prosthetic socket is in excessive extension
pressure on the anterior distal end of the residuum.
Physical examination reveals a reddened area to their
residual limb. What could be causing the pain?
2026
