Prosthetics Board Prep Exam Graded A+
50 lbs of force on the TD should not displace a socket more than _____ - ANSWER-1
inch
A 75-year-old, quadruple-bypass, obese patient who is also a transfemoral amputee
comes to you with a prescription for a suction socket with hydraulic knee unit and a
dynamic response vertical shock pylon type prosthetic foot. You should: - ANSWER-
Call the physician and suggest an alternate description
A heel that is too soft on a transtibial prosthesis may result in _______ ________ and
_______ _______ pressures. - ANSWER-proximal anterior and distal posterior
A patient is seen for follow-up for their PTB-SC prosthesis with pelite liner. The
alignment of the prosthesis is good, however the patient states that the socket feels less
secure recently and you note a gap between the socket and their limb at the lateral
proximal brim. What is the MOST appropriate adjustment to
address this problem? - ANSWER-Increase the thickness of the liner at the medial
proximal aspect
A patient who has missed multiple follow-up appointments for their transtibial prosthesis
is seen. The patient has been noncompliant with hygiene instructions and has
developed a Wagner Grade 2 ulcer on the anterior distal end of their residual limb. The
practitioner's PRIMARY responsibility at this time is to: - ANSWER-Instruct the patient to
discontinue use of the prosthesis and notify the physician
A transtibial amputee has an anatomical A-P measurement of 95 mm (3-3/4). What is
the correct A-P measurement of the positive model for a PTB hard socket? - ANSWER-
101 mm (add 6 mm)
A unilateral transradial prosthetic patient complains that the axilla loop of his harness is
uncomfortable. The most common reason for this complaint is that the cross point is: -
ANSWER-Superior to C7
After providing a device to a Medicare beneficiary, the practitioner must provide any
adjustments or repairs without charge for: - ANSWER-90 days
An amputation that removes the midfoot and forefoot, saving the talus and calcaneus is
called a - ANSWER-Chopart
(Symes preserves malleoli, Chopart preserves calcaneus and talus, Lisfranc preserves
tarsals)
At a follow-up visit for a patient who was fit with a body powered transhumeral
prosthesis, they complain that they are not able to open the terminal device with the
elbow fully flexed. One possible
, solution to this problem is to: - ANSWER-Add a cross back strap to the harness
cable efficiency calculation and ideal values TR and TH - ANSWER-TD/hanger
TR should be about 80%
TH should be about 70%
Carlisle formula for acromion to lateral epicondyle length - ANSWER-body height x .19
Carlisle formula for lateral epicondyle to thumb tip - ANSWER-body height x .21
Control attachment strap location and function - ANSWER-distal 1/3 of scapula,
capturing scapular abduction and shoulder flexion
During the initial dynamic alignment of a transfemoral prosthesis with an ischial
containment socket you note a lateral shift of the
socket during midstance. What is the most likely cause? - ANSWER-Lack of ischial
containment
elbow control motions - ANSWER-shoulder flexion, bi-scapular abduction for flexion
down, back, and out for locking
Elbow flexion attachment (EFA) placement - ANSWER-25 mm superior/anterior to joint
center and 30 mm distal to joint center
Excessive pressure at lateral proximal and medial distal areas in TT socket - causes
and solutions - ANSWER-excessive socket adduction if pylon is leaning medially,
excessive foot outset if it's not leaning
abduct the socket or inset foot
Excessive pressure at medial proximal and lateral distal areas in TT socket - causes
and solutions - ANSWER-excessive socket abduction if pylon is leaning laterally,
excessive foot inset if it's not leaning
adduct the socket or outset foot
Excessive transtibial socket flexion may result in _______ _______ and _______
_______ pressures. - ANSWER-Proximal posterior and distal anterior
flexible hinges indications - ANSWER-long, bilateral, pediatric
Fluid-controlled knee indications and considerations - ANSWER-variable cadence
all have cadence responsiveness and swing phase control, some have stance phase
control
pneumatic and hydraulic
50 lbs of force on the TD should not displace a socket more than _____ - ANSWER-1
inch
A 75-year-old, quadruple-bypass, obese patient who is also a transfemoral amputee
comes to you with a prescription for a suction socket with hydraulic knee unit and a
dynamic response vertical shock pylon type prosthetic foot. You should: - ANSWER-
Call the physician and suggest an alternate description
A heel that is too soft on a transtibial prosthesis may result in _______ ________ and
_______ _______ pressures. - ANSWER-proximal anterior and distal posterior
A patient is seen for follow-up for their PTB-SC prosthesis with pelite liner. The
alignment of the prosthesis is good, however the patient states that the socket feels less
secure recently and you note a gap between the socket and their limb at the lateral
proximal brim. What is the MOST appropriate adjustment to
address this problem? - ANSWER-Increase the thickness of the liner at the medial
proximal aspect
A patient who has missed multiple follow-up appointments for their transtibial prosthesis
is seen. The patient has been noncompliant with hygiene instructions and has
developed a Wagner Grade 2 ulcer on the anterior distal end of their residual limb. The
practitioner's PRIMARY responsibility at this time is to: - ANSWER-Instruct the patient to
discontinue use of the prosthesis and notify the physician
A transtibial amputee has an anatomical A-P measurement of 95 mm (3-3/4). What is
the correct A-P measurement of the positive model for a PTB hard socket? - ANSWER-
101 mm (add 6 mm)
A unilateral transradial prosthetic patient complains that the axilla loop of his harness is
uncomfortable. The most common reason for this complaint is that the cross point is: -
ANSWER-Superior to C7
After providing a device to a Medicare beneficiary, the practitioner must provide any
adjustments or repairs without charge for: - ANSWER-90 days
An amputation that removes the midfoot and forefoot, saving the talus and calcaneus is
called a - ANSWER-Chopart
(Symes preserves malleoli, Chopart preserves calcaneus and talus, Lisfranc preserves
tarsals)
At a follow-up visit for a patient who was fit with a body powered transhumeral
prosthesis, they complain that they are not able to open the terminal device with the
elbow fully flexed. One possible
, solution to this problem is to: - ANSWER-Add a cross back strap to the harness
cable efficiency calculation and ideal values TR and TH - ANSWER-TD/hanger
TR should be about 80%
TH should be about 70%
Carlisle formula for acromion to lateral epicondyle length - ANSWER-body height x .19
Carlisle formula for lateral epicondyle to thumb tip - ANSWER-body height x .21
Control attachment strap location and function - ANSWER-distal 1/3 of scapula,
capturing scapular abduction and shoulder flexion
During the initial dynamic alignment of a transfemoral prosthesis with an ischial
containment socket you note a lateral shift of the
socket during midstance. What is the most likely cause? - ANSWER-Lack of ischial
containment
elbow control motions - ANSWER-shoulder flexion, bi-scapular abduction for flexion
down, back, and out for locking
Elbow flexion attachment (EFA) placement - ANSWER-25 mm superior/anterior to joint
center and 30 mm distal to joint center
Excessive pressure at lateral proximal and medial distal areas in TT socket - causes
and solutions - ANSWER-excessive socket adduction if pylon is leaning medially,
excessive foot outset if it's not leaning
abduct the socket or inset foot
Excessive pressure at medial proximal and lateral distal areas in TT socket - causes
and solutions - ANSWER-excessive socket abduction if pylon is leaning laterally,
excessive foot inset if it's not leaning
adduct the socket or outset foot
Excessive transtibial socket flexion may result in _______ _______ and _______
_______ pressures. - ANSWER-Proximal posterior and distal anterior
flexible hinges indications - ANSWER-long, bilateral, pediatric
Fluid-controlled knee indications and considerations - ANSWER-variable cadence
all have cadence responsiveness and swing phase control, some have stance phase
control
pneumatic and hydraulic
