Exam 2 Flashcards
Stage 1 pressure sore
intact skin, nonblanchable, redness, differences in thickness and temperature
stage 2 pressure sore
shallow open ulcer, partial thickness loss, red/pink wound without slough
success for stage 2 healing
75% heal in 8 weeks
Stage 3 pressure sore
full thickness tissue loss, subcutaneous fat may be visible, may have undermining or tunneling, sloughing around edges
undermining
erosion under wound edges= large wound with small opening, measure parallel with a probe
tunneling
destruction of fascial planes creates a narrow passageway, open dead space can lead to abscess, measure depth with a probe to wound edge
stage 4 pressure ulcer
full thickness tissue loss with visible bone, tendon, muscle
success for healing of stage 4
62% ever heal, 52% heal in 1 year
prevention for ulcers
good skin care, nutrition, stop smoking, exercise, FES bike
position changes time frames
15 minutes in wheelchair, 2 hours in bed
wheelchair pressure relief techniques
hook and lean or shoulder extension/ER with scapular depress(C5/C6), weak push up(C7), strong push up(T6), lean forward 1, lean forward 2
powerchair best type for pressure relief
tilt in space–recliner causes migration
causes of pressure sores
sustained pressure(more frequent over atrophied muscle or fat), friction, shear
complications of pressure sores
osteomyelitis, joint infection, cellulitis, sepsis
wheelchair cushions
foam(not considered to reduce ulcer formation), air–ROHO, gel–Jay
quality of the cushion
distribution of pressure, decreased shear, heat dissipation, corrects hip obliquities, cover may absorb moisture
weight limits of wheelchairs and type
standard= less than 250 lbs, heavy duty= greater than 250 lbs
hemiplegic chair
has a lower seat for foot propulsion
standard wheel chair
less than 250lbs, durable, low maintenance, short term- infrequent use, no frills, chrome, non-adjustable usually, hospitals, nursing homes
custom, light weight chair
often rigid frame, low profile back, high end, narrow angled wheels, camber 0-9 degrees, may or may not have armrests, ALWAYS add a premier cushion
ultra light weight chair
less force to propel, adjustable, better components, cost less to operate and last 13.2x longer—–Provide manual wheelchair users with a high-strength, fully customizable manual wheelchair made of the lightest possible material
for SCI pt.
reclining vs tilt in space
User who can’t maintain an upright posture due to respiratory compromise, cardiac issues, orthostatic hypotension, toileting, musculoskeletal impairments; pressure relief; rear wheels are further back, anti-tippers must be present, reclining 0-180, tilt maintains 90 degree hip.
power chair
for increased UE weakness or motor loss, must have cognitive, function, and coordination to operate, have battery, different types of controllers–chin, sip/puff, joystick, head control, tongue touch
stair climbing chairs
climb stairs, rough terrain, not covered by most insurances–$$$
specialized chairs
sports, amputee-axle 2” behind COG & anti tippers, one arm drive
standing wheelchairs
may be be needed for job
Components- frame types
standard non-folding vs folding vs rigid; steel, chrome, titanium
Components- seats and backs
nylon sling/hammock, custom molded, contoured, solid, adjustable tension backs
Components- wheels
spoke vs magnum 12-24”. the more spokes=heavier, but lasts longer
rubber, polyurethane, tread
drive tires–pneumatic(more comfortable ride), solid, semi-pneumatic(won’t deflate)
Components- axle plates
standard, adjustable height and length, quick release
forward axle= tippier, easier to push
back axle= stability (double amputee)
Components- casters
3-8” soft roll, polyurethane
pneumatic, solid, semi-pneumatic, micro-lighted—smaller are better for turning, but worse for getting caught in cracks
Components- arm rests
removable or fixed, full length or desk cut out, tubular, adjustable height, flip back
clothing guards
Components- handrims
smooth- aluminum vs black plastic, projections- oblique(can get caught in doorways) vs vertical, theratubing trick
Components-leg rest
swing away/removable, fixed, elevating
Components- foot plates
heel loops, fixed, swing up, plates-smooth or ridge
Hanger angle
angle of footrest–70, 80, 90 degrees, 90 allows for better turning radius
Camber angle
angle of wheels, 0-9 degrees, lowers center of gravity= sharper turns, increase base of support, too much may prevent doorway entry
Seat slope
difference between seat to floor height in front and rear.
have a slight slope (buttocks below knees) for improved balance and body stability
too much can cause poor posture, sacral sit, lumbar flexion, thoracic kyphosis
Floor to Seat height AKA leg length
functionally- PT fingers horizontal, easily fit under thigh
CONSIDER CUSHIONS
measure heel to popliteal fold with shoes on–add 2” for footrest clearance
access to push rims- hands dangling, fingertips should just pass axle
too high- tipping, poor propulsion, poor fit under surfaces, unable to touch floor
too short- increased hip angle & pressure to tuberosities
Seat depth
functionally- 2-3 PT fingers between popliteal fold and front edge of seat
pt. all the way back in seat
measure from posterior buttock to popliteal fold–subtract 2” for clearance of pop. fold
too long- no 90 degree knee flexion, pressure sores
too short- pressure on tuberosities, skin irritation to post. thigh, decreased back stability
components- accessories
backpacks/bags, lap boards/tray, 02 tank carrier, grade aids