©BRIGHTSTARS 2025 ALL RIGHTS RESERVED 9:46 AM A+
Orthotics Final Exam Questions And
Answers |Latest 2025 | Guaranteed Pass
Orthosis - Answer✔A custom molded, custom fitted and pre-fabricated orthoses fabricated
and/or dispensed by therapists
HCPCS Level I Codes - Answer✔Developed by American Medical Association and includes codes
like Therapeutic Exercise, etc.
HCPCS Level II Codes - Answer✔Represent supplies or equipment
L-codes
Mechanical Principles of Orthotics - Answer✔Increase area of force application
Increase mechanical advantage (2/3 length of forearm)
Use optimum rotational force (90 degrees)
Consider torque effect
Control reaction at secondary joints
Consider reciprocal parallel force effect
Use appropriate outrigger systems
Incorporate articulated components appropriately
Increase material strength through contour
Eliminate friction and shear
1
, ©BRIGHTSTARS 2025 ALL RIGHTS RESERVED 9:46 AM A+
In a 3-point pressure system, the middle reciprocal pressure equals: - Answer✔The sum of the
proximal and distal forces
How do you eliminate friction? - Answer✔Design orthotics in accordance to key skin creases to
ensure orthotic material doesn't impede desired joint motion
Ensure straps are wide enough and good orthotic fit to avoid orthotic migration/slippage
How can you avoid high shear stress? - Answer✔Monitor for excessive pressure from orthotic
edges
Widen and flare as necessary
Mechanical advantage of a lever system is defined by: - Answer✔The relationship between the
length of the effort arm and the length of the resistance arm
If you lengthen the resistance arm: - Answer✔The less force is required to support a joint
If you shorten the resistance arm: - Answer✔More force is required
Forearm trough should be how long? - Answer✔2/3 length of forearm
Rotator Cuff Muscles - Answer✔Supraspinatus
Infraspinatus
Teres minor
Subscapularis
Ulnar Nerve Compression Site - Answer✔Cubital tunnel and Guyon's Canal
Radial Nerve Compression Sites - Answer✔Spiral groove and dorsal/radial anatomical snuffbox
2
Orthotics Final Exam Questions And
Answers |Latest 2025 | Guaranteed Pass
Orthosis - Answer✔A custom molded, custom fitted and pre-fabricated orthoses fabricated
and/or dispensed by therapists
HCPCS Level I Codes - Answer✔Developed by American Medical Association and includes codes
like Therapeutic Exercise, etc.
HCPCS Level II Codes - Answer✔Represent supplies or equipment
L-codes
Mechanical Principles of Orthotics - Answer✔Increase area of force application
Increase mechanical advantage (2/3 length of forearm)
Use optimum rotational force (90 degrees)
Consider torque effect
Control reaction at secondary joints
Consider reciprocal parallel force effect
Use appropriate outrigger systems
Incorporate articulated components appropriately
Increase material strength through contour
Eliminate friction and shear
1
, ©BRIGHTSTARS 2025 ALL RIGHTS RESERVED 9:46 AM A+
In a 3-point pressure system, the middle reciprocal pressure equals: - Answer✔The sum of the
proximal and distal forces
How do you eliminate friction? - Answer✔Design orthotics in accordance to key skin creases to
ensure orthotic material doesn't impede desired joint motion
Ensure straps are wide enough and good orthotic fit to avoid orthotic migration/slippage
How can you avoid high shear stress? - Answer✔Monitor for excessive pressure from orthotic
edges
Widen and flare as necessary
Mechanical advantage of a lever system is defined by: - Answer✔The relationship between the
length of the effort arm and the length of the resistance arm
If you lengthen the resistance arm: - Answer✔The less force is required to support a joint
If you shorten the resistance arm: - Answer✔More force is required
Forearm trough should be how long? - Answer✔2/3 length of forearm
Rotator Cuff Muscles - Answer✔Supraspinatus
Infraspinatus
Teres minor
Subscapularis
Ulnar Nerve Compression Site - Answer✔Cubital tunnel and Guyon's Canal
Radial Nerve Compression Sites - Answer✔Spiral groove and dorsal/radial anatomical snuffbox
2
