ABC - Prosthetic Assistant Exam Review Guide Questions and Answers

ABC - Prosthetic Assistant Exam Review
Guide Questions and Answers
Question 1
At heel strike, what causes the knee to be fully extended (it should be at 5-10°)?
Correct Answer
Faulty suspension
Heel lever arm too short
Heel cushion too soft



Question 2
@ Loading response for a BK, the patient feels their foot is slapping, what could be a
possible cause of this deviation?
Correct Answer
Plantarflexion resistance too soft
Incorrect foot category (weight gain)



Question 3
If a BK pt says, I'm being thrown forward...
Correct Answer
Patient shoe heel to firm or too high



Question 4
What can happen if hip flexion contractures are not accommodated in the TF
prosthesis?
Correct Answer
Increased lordosis
Uneven step length




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,Question 5
Why is the foot location relative to the ischial line important?
Correct Answer
Generates varus moment at the hip



Question 6
If a BK pt says, I'm falling backwards...
Correct Answer
Patient shoe heel to soft or too low



Question 7
For a BK @ initial contact, if the pt feels their knee to extended, what might be
causing this
Correct Answer
Faulty suspension
Insufficient pre-flexion of the socket
Foot too anterior



Question 8
For a AK @ pre-swing, if pt shows delayed knee flexion, what might be causing this
Correct Answer
Prosthetic knee alignment too stable
Prosthetic knee mechanical functions too stable



Question 9
@ Preswing for an AK, if the patient has a lateral whip, what could be a possible cause
of this deviation?
Correct Answer
Prosthetic knee is internally rotated
Socket donned internally rotated




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,Question 10
If a BK pt says, I changed my show to a flat or a converse...
Correct Answer
Prosthetic foot heel bumper too soft



Question 11
I feel like I'm walking up a hill
Correct Answer
Socket too extended



Question 12
When flexing an AK socket to accommodate a hip flexion contracture what
concurrent alignment should be made?
Correct Answer
Move the prosthetic knee posterior to keep the knee stable



Question 13
For a BK @ midstance, if there is too much varus moment, what might be causing this
Correct Answer
Foot too inset



Question 14
How many degrees of flexion are added to the original flexion contracture angle for
bench alignment?
Correct Answer
5°




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, Question 15
If the pt complains of prolonged anterior/distal tibia discomfort, the probable cause is
Correct Answer
Foot too dorsiflexed



Question 16
A BK comes in and feels anterior/distal discomfort in the prosthetic socket. How do
you address the problem?
Correct Answer
Extend the prosthetic socket
Add pre-tibial pads to the socket



Question 17
For a BK @ terminal stance and pre-swing, if heel off is delayed (with potential
hyperextension), what might be causing this
Correct Answer
Foot too anterior
Foot too plantarflexed



Question 18
TT pt comes in, at heel strike the SACH prosthesis rotates externally. What would be 1
cause of the gait deviation?
Correct Answer
The prosthetic heel durometer is too firm



Question 19
How do you correct anterior proximal and posterior distal pressure?
Correct Answer
Flex socket
Move socket anterior
Dorsiflex socket
Higher heel
Stiffen heel bumper




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