POAT Midterm Exam Questions and Answers 100% Pass

POAT Midterm Exam Questions and Answers 100% Pass what are the symptoms of nerve irritation of an ill fitted orthotic - Answer- numbness tingling burning motor changes pain what are the symptoms of vascular irritation of an ill fitted orthotic - Answer- change in color (deep red, blue, blanched) temperature changes swelling burning throbbing how might you modify an orthotic that is causing nerve/vascular irritation symptoms - Answer- extra padding flaring the orthotic's edge use straps and slings of adequate width to disperse the pressure what are the 3 force principles when creating a biomechanics advantage for an orthotic? - Answer- 1. at rest, all forces must be balanced and equal 0. 2. increasing the surface area, decreases the local pressure on the skin 3. increasing the moment arm length, decreases the local pressure on the skin which type of orthosis utilizes low load, long duration stretch with the muscle at/near its maximum length - Answer- serial static orthosis which type of orthosis utilizes stress relaxation theory and applies a low load force to the tissue's end range in one direction over a long period of time - Answer- static progressive orthosis what is the stress relaxation theory - Answer- occurs when a material that is subjected to a constant deformation requires a decreasing load with time to maintain a steady state -- creep what is the present day theory on foot orthoses - Answer- tissue stress theory what is an outrigger - Answer- an extension from the base of the brace that allows the force to retain the optimal 90 degree pull T/F: a static orthosis with an outrigger becomes a dynamic orthosis - Answer- true purpose of adding an outrigger to a static orthosis - Answer- allows for dynamic stretching are outriggers typically on UE or LE splints - Answer- UE LE what kind of braces use 4 points of contact - Answer- ACL brace KAFO which population would benefit from a rocker bottom shoe with flared/cushion heel - Answer- arthritis which population would benefit from a rocker bottom shoe with extra depth to allow for swelling/deformities, with a cushion heel - Answer- gout which population would benefit from a Thermold leather shoe (which is full contact, soft, shock absorbing material) - Answer- diabetes PVD if no edema is present which population would benefit from a Thermold sandal with velcro closure - Answer- PVD which population would benefit from a shoe with elastic shoe laces - Answer- pts with edema which population would benefit from a leather flat bottom shoe with mild toe spring - Answer- PD when is a locking KAFO indicated - Answer- when AFO does not control knee buckling, medial/lateral stability or AP stability, or if they have 3/5 quad strength describe the difference between bail lock and drop lock KAFOs - Answer- bail: pressure from the back of their seat to a stiff bar releases the lock to allow for flexion; spring loaded extension drop: gravity dependent locking for extension, manually lift lock for flexion who should not use drop lock KAFOs - Answer- if the pt has limited hand function, significant LE spasticity, or dependence on an AD when standing who should utilize drop lock KAFOs - Answer- - pt has hand function - no spasticity in LE - no AD who should utilize bail lock KAFO - Answer- if the pt has UE strength/coordination so they can control the descent into sitting who should not use bail lock KAFOs - Answer- those wi