ORTHOTICS AND PROSTHETICS BOARDS
NEWEST 2026 ACTUAL EXAM TEST
BANK| COMPLETE REAL EXAM
QUESTIONS AND CORRECT VERIFIED
ANSWERS/ ALREADY GRADRED A+
(MOST RECENT!!)
**Q1. What is the primary biomechanical principle used to correct
angular deformities or provide joint stability in an orthosis?**
A. Static force application
B. Three-point pressure system
C. Dynamic compression
D. Axial loading
**Answer: B. Three-point pressure system**
*Rationale:* A three-point pressure system uses one primary force
vector against two counter forces to create a moment that realigns a
joint or bone without causing translation .
**Q2. In the Sagittal Plane, where must the Ground Reaction Force
(GRF) pass to create an extension moment at the knee during
stance?**
A. Anterior to the knee joint
B. Posterior to the knee joint
,C. Directly through the center of the patella
D. Lateral to the mechanical axis
**Answer: A. Anterior to the knee joint**
*Rationale:* If the GRF passes *anterior* to the knee, it creates an
extension moment (locking the knee). If it passes *posterior*, it creates
a flexion moment (buckling) .
**Q3. Which ethical principle specifically requires the practitioner to be
truthful and not deceive the patient?**
A. Beneficence
B. Non-maleficence
C. Autonomy
D. Veracity
**Answer: D. Veracity**
*Rationale:* Veracity refers to honesty and truthfulness. While
autonomy respects patient choice, veracity ensures they have accurate
information to make that choice .
**Q4. What is the standard "bench alignment" reference for a
Transtibial (TT) prosthesis regarding the foot position?**
A. Heel of the foot 1 cm posterior to the socket center
B. Heel of the foot aligned with the bisection of the patella
C. Foot positioned 1 cm lateral to the socket
D. Midline of the foot aligned 2 cm medial to the socket center
,**Answer: B. Heel of the foot aligned with the bisection of the
patella**
*Rationale:* Standard bench alignment places the heel approximately
under the bisection of the patella (or slightly posterior) to ensure
proper stability during initial loading .
**Q5. According to the Medicare 2-Day Rule (Part A), if a custom
orthosis is delivered to a patient while they are still in the hospital, who
is responsible for payment?**
A. Medicare Part B
B. The patient directly
C. The hospital
D. The supplier writes it off as a donation
**Answer: C. The hospital**
*Rationale:* Under the 2-Day Rule, if a patient is in a covered Part A
hospital stay and the device is not delivered within 2 days of
*discharge*, the hospital must absorb the cost, not Medicare Part B .
---
### Prosthetics (Transtibial & Transfemoral)
**Q6. Which gait deviation is a patient MOST likely to exhibit if their
transtibial prosthesis is set in excessive dorsiflexion (aligned too
anteriorly)?**
, A. Knee hyperextension (Genu Recurvatum) in mid-stance
B. Excessive knee flexion (Buckling) in mid-stance
C. Lateral trunk lean toward the prosthetic side
D. Vaulting on the sound side
**Answer: B. Excessive knee flexion (Buckling) in mid-stance**
*Rationale:* Anterior placement of the foot moves the GRF *posterior*
to the knee, creating a flexion moment. The quadriceps must work
constantly to prevent the knee from buckling .
**Q7. Why is the Ischial Containment Socket generally preferred over
the Quadrilateral Socket for Transfemoral (TF) amputees?**
A. It is easier to fabricate and requires less time
B. It provides better medial-lateral stability by surrounding the ischium
C. It relies solely on suction without a sleeve
D. It allows for 100% end-bearing weight on the distal residual limb
**Answer: B. It provides better medial-lateral stability by surrounding
the ischium**
*Rationale:* The narrow mediolateral dimension of the IC socket
contains the ischium, providing better gluteal muscle contact, stability,
and proprioception compared to the wide ML dimension of the Quad
socket .
**Q8. A patient with a transradial (below elbow) amputation presents
with a short, bulbous residual limb. Which suspension method is MOST
effective to prevent pistoning?**
NEWEST 2026 ACTUAL EXAM TEST
BANK| COMPLETE REAL EXAM
QUESTIONS AND CORRECT VERIFIED
ANSWERS/ ALREADY GRADRED A+
(MOST RECENT!!)
**Q1. What is the primary biomechanical principle used to correct
angular deformities or provide joint stability in an orthosis?**
A. Static force application
B. Three-point pressure system
C. Dynamic compression
D. Axial loading
**Answer: B. Three-point pressure system**
*Rationale:* A three-point pressure system uses one primary force
vector against two counter forces to create a moment that realigns a
joint or bone without causing translation .
**Q2. In the Sagittal Plane, where must the Ground Reaction Force
(GRF) pass to create an extension moment at the knee during
stance?**
A. Anterior to the knee joint
B. Posterior to the knee joint
,C. Directly through the center of the patella
D. Lateral to the mechanical axis
**Answer: A. Anterior to the knee joint**
*Rationale:* If the GRF passes *anterior* to the knee, it creates an
extension moment (locking the knee). If it passes *posterior*, it creates
a flexion moment (buckling) .
**Q3. Which ethical principle specifically requires the practitioner to be
truthful and not deceive the patient?**
A. Beneficence
B. Non-maleficence
C. Autonomy
D. Veracity
**Answer: D. Veracity**
*Rationale:* Veracity refers to honesty and truthfulness. While
autonomy respects patient choice, veracity ensures they have accurate
information to make that choice .
**Q4. What is the standard "bench alignment" reference for a
Transtibial (TT) prosthesis regarding the foot position?**
A. Heel of the foot 1 cm posterior to the socket center
B. Heel of the foot aligned with the bisection of the patella
C. Foot positioned 1 cm lateral to the socket
D. Midline of the foot aligned 2 cm medial to the socket center
,**Answer: B. Heel of the foot aligned with the bisection of the
patella**
*Rationale:* Standard bench alignment places the heel approximately
under the bisection of the patella (or slightly posterior) to ensure
proper stability during initial loading .
**Q5. According to the Medicare 2-Day Rule (Part A), if a custom
orthosis is delivered to a patient while they are still in the hospital, who
is responsible for payment?**
A. Medicare Part B
B. The patient directly
C. The hospital
D. The supplier writes it off as a donation
**Answer: C. The hospital**
*Rationale:* Under the 2-Day Rule, if a patient is in a covered Part A
hospital stay and the device is not delivered within 2 days of
*discharge*, the hospital must absorb the cost, not Medicare Part B .
---
### Prosthetics (Transtibial & Transfemoral)
**Q6. Which gait deviation is a patient MOST likely to exhibit if their
transtibial prosthesis is set in excessive dorsiflexion (aligned too
anteriorly)?**
, A. Knee hyperextension (Genu Recurvatum) in mid-stance
B. Excessive knee flexion (Buckling) in mid-stance
C. Lateral trunk lean toward the prosthetic side
D. Vaulting on the sound side
**Answer: B. Excessive knee flexion (Buckling) in mid-stance**
*Rationale:* Anterior placement of the foot moves the GRF *posterior*
to the knee, creating a flexion moment. The quadriceps must work
constantly to prevent the knee from buckling .
**Q7. Why is the Ischial Containment Socket generally preferred over
the Quadrilateral Socket for Transfemoral (TF) amputees?**
A. It is easier to fabricate and requires less time
B. It provides better medial-lateral stability by surrounding the ischium
C. It relies solely on suction without a sleeve
D. It allows for 100% end-bearing weight on the distal residual limb
**Answer: B. It provides better medial-lateral stability by surrounding
the ischium**
*Rationale:* The narrow mediolateral dimension of the IC socket
contains the ischium, providing better gluteal muscle contact, stability,
and proprioception compared to the wide ML dimension of the Quad
socket .
**Q8. A patient with a transradial (below elbow) amputation presents
with a short, bulbous residual limb. Which suspension method is MOST
effective to prevent pistoning?**
