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Quiz 2
Venous disease-Diabetic Ulcers
327
Medical
Graduate
11/02/2015

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Cards

Term
which ulcer accounts for 70-90% of all ulcers
Definition
venous
Term
% of the population that is diagnosed with chronic venous insuffiency
Definition
1-2%
Term
% of population that has venous ulcers
Definition
1%
Term
the remaining 10-30% of ulcers, what % are d/t mixed venous/arterial insuffiency
Definition
15%
Term
gender more at risk for ulceration
Definition
women
Term
indiviuals 65+ years old have how much of a greater risk to develop venous disease
Definition
7.5x
Term
prevalence of ulcers on admission to SNF is what %
Definition
2.5%
Term
what % of venous ulcers can be resolved through conservative measures?
Definition
91%
Term
recurrence rate in venous ulcers
Definition
13-81%
Term
main cause of ulcer recurrence
Definition
non-adherence
Term
venous insuffiency aka (3)
Definition
venous reflux disease, ulcerative venous disaease, venous stasis disease
Term
chronic venous insuffiency occurs when what happens to valves?
Definition
become incompetent and do not close either in the superficial, deep, or perforator system
Term
normal venous pressure
Definition
5-10 mmHg
Term
deep system pressure as compared to the pressure in teh superficial veins
Definition
higher pressure in the deep system
Term
pressure at the arterioles as they transfer blood to the capillaries on the venous side
Definition
25-35 mmHg
Term
which system of the venous system will malfunction first?
Definition
deep
Term
varicose veins are d/t
Definition
blood back flows since valves do not close
Term
mm vital for venous return
Definition
calf muscle pump
Term
common problems with the calf mm pump include (6)
Definition
calf weakness, patient non ambulatory, decreased ankle ROM, OA, foot deformities, paralysis
Term
3 deep veins located in the calf muscle
Definition
femoral, popliteal, tibial
Term
the deep veins run how to the arteries
Definition
parallel
Term
pressure in the deep veins as compared to the superficial veisn
Definition
deep veins have a higher pressure
Term
purpose of the deep veins
Definition
carry most of the blood back to the heart
Term
all medium and large veins have bicuspid valves. what is the role of these bicuspid valves?
Definition
prevent retrograde flow and venous HTN
Term
superficial veins (2)
Definition
greater and lesser saphenous veins
Term
where are the superficial veins lcoated
Definition
in the subcutaneous tissues
Term
function of the superficial veins
Definition
drain the skin and subcutaenous tissues
Term
veins which are more susceptible to damage
Definition
superficial veins
Term
why are the superficial veins more susceptible to damage other than their superficial location
Definition
thinner adventitia layer (outer layer)
Term
how do the superficial layers assist in temperature regulation?
Definition
cooling when dilated
Term
purpose of the perforating veins
Definition
pierce the fascia connecting the superficial veins to the deep veins
Term
innermost layer of the vein
Definition
tunica intima
Term
middle layer of the vein
Definition
tunica media
Term
outermost layer of the vein
Definition
tunica adventita
Term
which layer of the vein produces a heparin like enzyme the reduces the incidence of DVTs
Definition
tunica intima
Term
the tunica intima produces an enzyme that does what?
Definition
heparin like enzyme that reduces incidence of DVTs
Term
similarities between veins and arteries
Definition
layers are similar, however veins are thinner with less smooth muscle
Term
where is most of the body's blood volume
Definition
70% is in the veins
Term
the vein's bicuspid valves are easily damaged by (4)
Definition
trauma, DVTs, inflammation, venous distension
Term
damage to vein bicuspid valves leads to what
Definition
retrograde flow
Term
retrograde flow leads to
Definition
venous HTN
Term
population which could be prime candidates for venous HTN
Definition
sedentary jobs, which allow infrequent walking or those who stand in one place for hours on end
Term
pressure in the veins increases from 15 mmHg to what with static standing?
Definition
90 mmHg
Term
DVT risk factors (11)
Definition
previous/Family Hx of DVT, immobility, recent surgery, 40+ y.o., hormone therapy, oral contraceptives, pregnancy/post partum, previous or current cancer, limb trauma and/or orthopedic procedures, coagulation abnormalities, obesity
Term
DVT symptoms
Definition
discoloraiton of the legs, calf or leg pain or tenderness, swelling of the leg/lower limb, warm skin, surface veins become more visible, leg fatigue
Term
Virchow's Triad
Definition
immobilization, trauma, hypercoaguability
Term
what should you look for with Virchow's Triad
Definition
pain, pallor, swelling
Term
inflammatory thrombosis of superficial normal vein d/t infection or trauma from needles or trauma to a varicose vein
Definition
superficial phlebitis
Term
sign of superficial phlebitis
Definition
linear painful erythematous cord
Term
purpose of Homan's sign
Definition
id a dvt
Term
is homan's sign a good test?
Definition
not really
Term
how is the homan's sign test performed?
Definition
ankle is passively dorsiflexed with knee extended
Term
what would the S/S be for a (+) homan's sign
Definition
pain with test movement, tenderness with deep palpation of gastrocnemius
Term
a (+) homan's sign can be found with what other conditions?
Definition
superficial phlebitis, musculoskeletal injuries (achilles tendonitis)
Term
the 2nd pump of the body, the first being the calf
Definition
respiratory pump
Term
durign inspiration what happens to the diaphragm
Definition
depresses into the abdominal space
Term
during inspiration what is the pressure in the thorax
Definition
negative pressure
Term
during inspiraiton what is the pressure in the abdomen
Definition
positive pressure
Term
the greater the inspiration teh greater the
Definition
venous return
Term
risk factors for ulceration (6)
Definition
vein dysfunction, calf mm pump failure, trauma, previous venous ulcer, advanced age, diabetes
Term
chronic venous ulcers are thoguht to be initaited by what
Definition
minor trauma to an edematous leg
Term
what kind of trauma can cause a venous ulcer
Definition
benign trauma to leg with VI such as brush against a thorn bush, scratching a dry/itchy leg
Term
once a break in skin integrity occurs, the likelihood of delayed wound healing is increased in the presence of VI because of what
Definition
decreased O2 concentration
Term
recurrence rate for venous ulcers are as high as what?
Definition
81%
Term
reasons ulcers recur in the same location (4)
Definition
same reason as previous (local hypoxiema, malnutrition)
consider vascular consult/closure procedure
scare tissue from previous ulceration has less tensile strength and elasticity than the original healthy tissue
precipitating factors not addressed (edema)
Term
the wound will not heal if the A1C is above what level
Definition
8.5
Term
diabetic normal a1c is between what
Definition
6 and 7
Term
diabetes impairs what phase of wound healing?
Definition
impairs all 3
Term
s/s of venous disease (7)
Definition
pain, spider veins, varicose veins, leg heaviness/fatigue, swelling, hemosiderine staining, lipodermatosclerosis
Term
conversion of skin into thinck, hard tissue by teh deposition of lipids and fibrous tissue (inverted chapagne bottle sign)
Definition
lipodermatosclerosis
Term
conversion of skin into thinck, hard tissue by teh deposition of lipids and fibrous tissue (inverted chapagne bottle sign)
Definition
lipodermatosclerosis
Term
apperance and characteristics of the venous ulcer (6)
Definition
shallow, irregular borders, weepy (mild to profuse exudate), gaiter area, beefy red, fibrin possible, surrounding skin with hemosiderine staining, lipodermatosclerosis, edema, eczema
Term
venous refill times: if normal
Definition
>25 seconds
Term
venous refill times: if mild disease present
Definition
20-24 seconds
Term
venous refill times: moderate disease present
Definition
10-19 seconds
Term
venous refill times: if severe disease prsent
Definition
<10 seconds
Term
screening for CVI: gold standard
Definition
color flow doppler ultrasound
Term
screening for CVI: con of a color flow doppler ultrasound
Definition
expensive (250,000)
Term
screening for CVI: 2nd best test
Definition
quantitative photoplethysmogrpahy
Term
screening for CVI: tests screen for what?
Definition
reflux, thrombus, venous wall status as well as locations of obstructions
Term
prolbme with a doppler ultrasound of veins
Definition
more subjective than a doppler exam of arteries
Term
3 parts of a doppler ultrasound
Definition
resting test, augmentation test, reflux test
Term
why is the doppler ultrasound test subjective
Definition
clinician interprets sound intensity changes
Term
procedure for doppler ultrasound resting test
Definition
pt supine. Gel over large vein with probe at 45 degree angle. Normally, veins should have spontaneous sounds
Term
procedure for doppler ultrasound augmentation test
Definition
apply pressure in form of a quick squeeze distal to probe placement. In healthy veins, this should enhance the doppler signal
Term
procedure for doppler ultrasound for reflux test
Definition
apply pressure (quick squeeze) proximal to probe placement. In healthy veins sound will disappear. When compression released, resting signal returns
Term
Classification of CVI: abbreviation
Definition
CEAP
Term
Classification of CVI: C
Definition
clinical presentation
Term
Classification of CVI: E
Definition
etiology (primary, secondary, congential)
Term
Classification of CVI: A
Definition
anatomic distribution (deep, superficial, perforator)
Term
Classification of CVI: P
Definition
pathophysilogy (reflux, obstruction, both)
Term
Classification of CVI: Clincal Presentation Class 0
Definition
no signs of venous disease
Term
Classification of CVI: Clincal Presentation Class 1
Definition
spider veins (telangiectases)
Term
Classification of CVI: Clincal Presentation Class 2
Definition
varicosities
Term
Classification of CVI: Clincal Presentation Class 3
Definition
edema
Term
Classification of CVI: Clincal Presentation Class 4
Definition
skin changes
Term
Classification of CVI: Clincal Presentation Class 5
Definition
healed ulceration
Term
Classification of CVI: Clincal Presentation Class 6
Definition
active ulceration
Term
Classification of CVI: C3 Ep As Pr
Definition
clinical (edema), etiology (primary), anatomic distribution (superficial), pathophysiology (refulx)
Term
nonsurgical treatment of CVI
Definition
compression
Term
types of compression for nonsurgical treatment of CVI
Definition
compression stockings, multilayer compression wraps, elevation and exercise, pneumatic pumps
Term
purpose of compression
Definition
increases interstital pressure reversing the fluid leak out of the capillary bed and forces it back into the blood stream
Term
short or long stretch for VI
Definition
inconclusive rsearch
Term
short or long stretch for lymphedema
Definition
short stretch
Term
studies indicate that what type of compression is similar to short stretch in their outcomes in regards to VI
Definition
4 layer wraps
Term
external compression compensates for what regarding skin
Definition
decreased elasticity in skin and vessels
Term
external compression keeps fluid from collecting where
Definition
in the skn
Term
compression with the addition of muscular activity promotes what
Definition
venous and lymphatic return
Term
Compression stockings pressure: class 1
Definition
20-30 mmHg
Term
Compression stockings pressure: class 2
Definition
30-40 mmHg
Term
Compression stockings pressure: class 3
Definition
40-50 mmHg
Term
Compression stockings pressure: class 4
Definition
50-60 mmHg
Term
Compression stockings pressure: where is it measured
Definition
at the ankle
Term
Compression stockings pressure: what happens to the pressure as you move proximal from the ankle
Definition
graduated down
Term
there should not be any of this in a venous wound
Definition
slough
Term
presence of slough in a venous wound would indicate what
Definition
lots of bacteria, or it is actually arterial insuffiency
Term
are ace wraps good for VI?
Definition
useless
Term
dr aaron recommends what type of stretch for VI
Definition
long stretch
Term
considerations for choosing a compression garment
Definition
cost/insurance coverage, compression class, pt compliance, appearance (cosmetics), custom/off the shelf, material (long/short stretch), skin condition, donning/doffing
Term
Short or long stretch: cotton fibers with interlocking weave
Definition
short
Term
Short or long stretch: polyblend fibers
Definition
long
Term
Short or long stretch: allows approximately 60% extensibility of original length
Definition
short
Term
Short or long stretch: allows for more than 140% extensibility of original length
Definition
long
Term
Short or long stretch: comprilan, rosidal K, porelast
Definition
short
Term
Short or long stretch: ace, four flex, profore, surepress, cetopress
Definition
long
Term
if the pressure is 40 mmHG at the ankle, it will graduate to what at the knee?
Definition
17 mmHg
Term
new compression design that enhances lymphatic drainage and minimizes the tourniquet effect of other types of compression
Definition
compression dynamics
Term
circaid juxta fit: Low ______ pressure, high _______ pressure
Definition
resting, working
Term
indications of pneumatic pumps (4)
Definition
primary/secondary lymphedema, CVI, DVT prophylaxis
Term
contraindications of pneumatic pumps (6)
Definition
CHF, DVT, PE episodes, untreated infection/cellulitis, lymphangiosarcoma, AI (ABI <.5 or <.6 depends on study)
Term
if an ABI is greater than 1 with diminished/absent pulses what would it mean?
Definition
vasculitis and is an urgent referral
Term
ABI: what angle should the doppler probe be held at
Definition
45-60 degrees
Term
ABI: don't pump the cuff past what
Definition
250 mmHg
Term
ABI: normal value
Definition
1.2
Term
ABI: normal value and compression
Definition
okay to use compression
Term
ABI: mild arterial insuffieincy
Definition
.8-1.0
Term
ABI: mild arterial insuffiency and compression
Definition
okay to use compression
Term
ABI: moderate insuffiency
Definition
.5-.8
Term
ABI: moderate arterial insuffiency and compression
Definition
contraindicated (ok to use light compression ABI .6-.8)
Term
ABI: severe arterial insuffiency
Definition
<=.5
Term
ABI: severe arterial insuffiency and compression
Definition
absolutely contraindicate
Term
ABI: >1.2 indicative of what
Definition
calcified vessles if diabetic (medical calcific stenosis)
Term
ABI: when would intermitten claudication appear
Definition
moderate arterial insuffiency
Term
ABI: when would resting pain occur
Definition
.4-.5
Term
ABI: when would tissue loss occur?
Definition
<.3
Term
when should a toe brachial index be used?
Definition
when calcific stenosis gives a falsely elevated ABI
Term
TBI normal value
Definition
>= .7
Term
how is TBI obtained
Definition
segmental digital plethysmography
Term
Surgical Interventiosn for CVI: (6)
Definition
stripping, sclerotherapy, stab phlebectomy, subfascial endoscopic perforator srugery, closure procedure (radio frequency ablation), Linton procedure
Term
Surgical Interventiosn for CVI: manually pulls the vein out, out dated, significant tissue damage
Definition
stripping
Term
Surgical Interventiosn for CVI: injection of a caustic agent into the vein causing necrosis and scar formation
Definition
sclerotherapy
Term
Surgical Interventiosn for CVI: uses a series of small incisions to remove large varicosities
Definition
stab phlebectomy
Term
Surgical Interventiosn for CVI: entry to the perforator with a CO2 ballon used to collapse the vein
Definition
subfascial endoscopic perforator surgery
Term
Surgical Interventiosn for CVI: a catheter is inserted into the vein. Once in place it is withrawn wht the simulataneous application of ultrasonic RF energy thereby closing the vein
Definition
closure procedure/radio frequency ablation
Term
Surgical Interventiosn for CVI: incised entire leg and removed the vein
Definition
linton procedure
Term
What does the lymphatic system consist of? (6)
Definition
organs, bone marrow, lymph nodes, spleen, thymus, and ducts
Term
Function of the lymphatic system simple
Definition
recirculate interstitial fluid back to the tissues
Term
function of the lymphatic system (more complicated definition) (3)
Definition
returns interstitial fluids to the bloodstream, produce T cells and B cells to fight infection/disease, transprots lipids from the intestines to the blood
Term
WHere are the superfiical lymphatics located
Definition
dermal layer of teh skin
Term
Where are teh deeper lymphatics lcoated
Definition
in the subcutaneous tissue
Term
What is lymph
Definition
fluid and protein that has been squeezed out of teh blood (blood plasma)
Term
How is lymph drained from the tissue
Definition
microscopic blind-ended vessels called lymph capillaries
Term
Are they lymph capillaries pressurzied?
Definition
no
Term
How does lymphatic fluid drain?
Definition
easily under normal circumstances by peristalsis from muscle activity (both smooth mm and skeletal mm)
Term
What is lymphedema caused by (3)
Definition
blockage of lymph channels, damage to lymph vessels or node (d/t surgery, radiation, or trauma), or congenital anomalies
Term
Primary lymphedema aka
Definition
congenital lymphedema
Term
lymphedema caused by blockage of lymph channels, damage to lymph vessels or nodes d/t surgery, radiation, or trauma
Definition
secondary lymphedema
Term
Stemmer's sign
Definition
inability to pinch a fold of skin at the base of the 2nd toe. sign of lymphedema
Term
staging lymphedema: grade 1 (edema descriptor)
Definition
mild edema
Term
staging lymphedema: grade 2 (edema descriptor)
Definition
moderate edema
Term
staging lymphedema: grade 3a (edema descriptor)
Definition
severe edema
Term
staging lymphedema: grade 3b (edema descriptor)
Definition
massive edema
Term
staging lymphedema: grade 4 (edema descriptor)
Definition
gigantic edema
Term
staging lymphedema: which grade has two substages
Definition
3
Term
staging lymphedema: grade 1 (physical appearance)
Definition
involves distal parts such as a forearm or hand or a lower leg and foot. THe difference in circumference is less than 4 cm and other tissue changes are not yet present
Term
staging lymphedema: grade 2 (physical appearance)
Definition
lymphedema involves an entire limb or corresponding quadrant of the trunk. Difference in circumference is more than 4 but less than 6 cm. TIssue changes such as pitting are apparent
Term
staging lymphedema: grade 3a (physical appearance)
Definition
lymphedema is present in on elimb and its associated trunk quadrant. The difference in circumference is greater than 6 cm. Significant skin alterations such as cornification, fistulas, and or cysts can be present
Term
staging lymphedema: grade 3b (physical appearance)
Definition
same as 3a, but two or more extremities are affected
Term
staging lymphedema: grade 4 (physical appearance)
Definition
aka elephantitis. THe affected extremities are huge d/t almost complete blockage of the lymph channels. Elephantiasis my also affect the head and face
Term
tx of lymphedema
Definition
address lymphedema asap for best results. network with manual therapists who specialize in lymphatic drainage and mgmt. initiate compression.
Term
lipedema is frequently mistaken for what (2)
Definition
obesity, lymphedema
Term
lipedema
Definition
pathological disorder of adipose tissue resulting in progressive migration and expansion of fat cells in the lower body
Term
characteristics of lipedema: (6)
Definition
familial, females predominantly affected, can appear in thin or obese individuals, normal size upper body with symmetric and bilateral expansion of fat from waist to just above malleoli. fat can not be lost with diet and exercise. easy bruising
Term
lipedema onset (4)
Definition
primarily puberty, pregnancy, peri menopause, other hormonal changes (hysterectomy etc)
Term
secondary side effects of lipedema
Definition
eventual interference of lymphatic flow by accumulation of adipose and secnodary lymphedema frequently develops as a result
Term
syndrome associated with lipodema
Definition
suaven trousers syndrome. feet spared with overlapping tissue over the malleoli
Term
differential dx: pain CVI
Definition
mild
Term
differential dx: pain lymphedema
Definition
minimal
Term
differential dx: pain lipedema
Definition
none
Term
differential dx: dorsum of foot involved cvi
Definition
minimal
Term
differential dx: dorsum of foot involved lymphedema
Definition
yes
Term
differential dx: dorsum of foot involved
Definition
no
Term
differential dx: decreased swelling over night cvi
Definition
yes
Term
differential dx: decreased swelling overnight lymphedema
Definition
minimal
Term
differential dx: decreased swelling over night lipedema
Definition
none
Term
differential dx: stemmer sign CVI
Definition
negative
Term
differential dx: stemmer sign lymphedema
Definition
(+)
Term
differential dx: stemmer sign lipedema
Definition
- or +
Term
differential dx: reccurent infections CVI
Definition
occasional
Term
differential dx: recurrent infections lymphedema
Definition
frequent
Term
differential dx: recurrent infections lipedema
Definition
none
Term
differential dx: easy bruising CVI
Definition
-
Term
differential dx: easy bruising lymphedema
Definition
-
Term
differential dx: easy bruising lipedema
Definition
+
Term
other causes of LE edema (8)
Definition
DVT, CHF, neoplasm, radiation, infection, pulmonary HTN, systemic diseases, meds
Term
LE edema can be d/t infection with which bacteria being more common
Definition
strep gram most often, erysipela
Term
which meds could cause LE edema
Definition
calcium channel blockers, steroids, tamoxifen
Term
arterial disease aka (2)
Definition
peripheral vascular disease (PVD), peripheral arterial disease (PAD)
Term
most common etiology of arterial disease
Definition
arteriosclerosis
Term
conditions most commonly associated with arteriosclerosis (6)
Definition
hyperlipidemia, HTN, obesity, diabetes, CAD, CHF
Term
signs of peripheral arterial occlusive disease (8)
Definition
thin, atrophic skin (shiny hairless), hypertrophic nails, muscle wasting, dependent rubor, pallor and pain with elevation, hanging foot sign, exercise induced pain (intermitten claudication), absent or diminished pulses
Term
characteristics of arterial wounds (6)
Definition
well defined round borders "cookie cutter" appearance
dry with minimal to no exudate
pale in color
usually full thickness
painful
located at the tips of toes, lateral foot, and gaiter area
Term
6 P's of PAOD
Definition
pulselessness, pallor, poikilothermia, pain, paralysis, paresthesias
Term
poikilothermia
Definition
inability to regulate body temp usually d/t a vital body part not getting flow
Term
pain from PAOD is from exercise induced muscular ischemia and can manifest where
Definition
calf, thigh, gluteal region
Term
Literature supports what exercise program for muscular ischemia
Definition
30 min, 3x/wk for at lesat 6 months at an 8/10 VAS
Term
PAOS could be confused with these other 2 conditions
Definition
blood clot, herniated disc w radiculopathy
Term
what is a LEA (lower extremity arterial study) able to diagnose
Definition
disease at multiple levels using doppler wave and pulse volume recording
Term
What is a laser doppler able to do
Definition
measures blood flow to the skin, penetrates 1-2 mm below the surface
Term
With a laser doppler: a skin perfusion >= to what indicates a 90% changes that wound healing will occur
Definition
25 mmHg
Term
Duplex scan combines what 2 procedures
Definition
arterial doppler with color flow analysis
Term
Duple scan combines arterial doppler with color flow analysis to do what?
Definition
evaluate multiple arteries
Term
Transcutaneous Oxygen (TcpO2) measures what?
Definition
oxygen as it diffuses across the skin from capillary beds
Term
What TcpO2 pressure will the wound not heal
Definition
<20 mmHg
Term
What TcpO2 pressure should the wound heal
Definition
>35 mmHg
Term
Effects of Tissue Ischemia: Decreased (6)
Definition
metabolism
neutrophil function (ability to fight bacteria)
RNA/DNA production
collagen production
nitric oxide production
angiogenesis
Term
end result of tissue ischemia
Definition
non-healing wound environment
Term
other causes of tissue ischemia (6)
Definition
smoking, anemia, radiation, vasculitis, edema, severly impaired cardiac function
Term
how much did 1 cigarette decrease O2 flow and for how long
Definition
30% for 1 hr
Term
what kill the blood supply to the cells with radiation
Definition
obliterative endocarditis
Term
optiuons for tx of ischemia (4)
Definition
minimally invasive procedures, angioplasty, thrombolytics, stents/baloons, VEGF (molecular level therapy)
Term
what is the role of VEGF( vascular endothelial growth factor)
Definition
signals 4 proteins responsible for vascular/angiogenesis. Enhances micro vascular permeability
Term
what is the specfic procedure for the angioplasty option
Definition
percutaneous transluminal coronary angioplasty (PTCA, baloon compression of plaque)
Term
surgical alternative for ischemia (5)
Definition
bypass grafts
reconstructions
gortex graft (ePTFE)
reverse saphenous vein, lesser saphenous vein
amputation
Term
by pass grafts could use what arteries (3)
Definition
fem/pop
fem/fem
axillo/fem
Term
diabetic ulcers aka
Definition
neuropathic ulcers
Term
how many Americans born after 2002 will be diagnosed positive for diabetes
Definition
1 in 3
Term
what percent of persons who are presently affected will develop a foot ulcer
Definition
15%
Term
how many people are presently affected by diabetes
Definition
20 million
Term
how many people are yet undiagnosed with diabetes
Definition
8 million
Term
of those who are diagnosed with diabetes how many will undergo amputation
Definition
6%
Term
what percentage of diabetic patietns demonstrate mild to severe neuropathy
Definition
60-70%
Term
diabetes accounts for what percentage of all lower extremity amputations
Definition
45%
Term
what percentage of diabetic foot ulcers will lead to amputation?
Definition
85%
Term
most common co-morbidity associated with diabetes
Definition
arterial disease
Term
high blood sugars cause damage to what 2 structures
Definition
nerve (neuropathy) and artery damage
Term
arterial changes with diabetes occur in what types of vessels
Definition
both large and small vessels
Term
arterial changes d/t diabetes: large vessels: which arteries (2)
Definition
coronary aa, large lower extremity aa's
Term
arterial changes d/t diabetes: large vessels: identical in appearance to changes caused by what?
Definition
arterial sclerosis
Term
arterial changes d/t diabetes: small vessels: which vessels (3)
Definition
arterioles, capillaries, venules
Term
arterial changes d/t diabetes: small vessels: damge is specific to diabetes with what structures being most vulnerable (2)
Definition
eyes and kidneys
Term
what dysfunctional does high blood sugars lead to in the small vessels
Definition
endothelial
Term
endothelial dysfunction in the small vessels as a result of high blood sugars
Definition
vessels cant dilate in response to injury resulting in decreased bloow flow and O2/nutritional transport
Term
what reflex is affected in the small vessels as a result of high blood sugars
Definition
nerve-axon reflex
Term
precise etiology of the nerve-axon reflex
Definition
unknown at this time
Term
most important side effect of small vessel disease
Definition
infection, one of the most common reasons for hospital admission for the diabetic patient and is a precursor for most amputations
Term
3 causes of diabetic foot ulcerations
Definition
peripheral neuropathy, sensory loss, mechanical stres (foot deformities, tight shoes)
Term
3 causes of foot ulcerations
Definition
peripheral neuropathy, sensory loss, mechanical stres (foot deformities, tight shoes)
Term
assessment of loss of protective sensation: what monofilament is used
Definition
semmes-weinstein 5.07 monofilament
Term
assessment of loss of protective sensation: how much pressure does the semmes weinsten 5.07 monofilament deliver
Definition
10 grams of pressure
Term
assessment of loss of protective sensation: how often should the semmes weinsten 5.07 monofilament be tested?
Definition
quarterly
Term
assessment of loss of protective sensation: what areas should not be tested for sensation
Definition
calloused areas
Term
assessment of loss of protective sensation: tuning fork at what frequency
Definition
128 Hz
Term
assessment of loss of protective sensation: absence of sensation when tested with a 128 Hz tuning fork indicates what
Definition
loss of protective sensation
Term
LEAP
Definition
Lower Extremity Amputation Prevention
Term
what is the greatest risk for a diabetic foot ulcer
Definition
neuropathy
Term
what is the greatest risk for amputation
Definition
diabetic foot ulcer
Term
assessment of loss of protective sensation: if a patient cannot sense a monofilament of 10 grams bending force at 3 or more areas tested, what does this indicate
Definition
the pt has a loss of protective sensation and are at a high risk for ulceration
Term
characteristics of diabetic foot ulcers: location (2)
Definition
plantar foot surface, over boney prominences
Term
characteristics of diabetic foot ulcers: appearance (3)
Definition
round, punched out in shape, minimal exudate, pale wound bed
Term
characteristics of diabetic foot ulcers: symptom
Definition
painless
Term
characteristics of diabetic foot ulcers: other factors: skin condition
Definition
dry skin
Term
characteristics of diabetic foot ulcers: other factors: what is the dry skin d/t? what does it result in?
Definition
autonomic neuroapthy. results in cracks and fissures
Term
characteristics of diabetic foot ulcers: other factors: hyperkeratosis
Definition
abnormal callus formation
Term
characteristics of diabetic foot ulcers: other factors: foot dysfunction
Definition
peronial nerve foot fdrop leads to equino verus and increased forefoot pressure, leads to foot deformities and muscle weakness
Term
characteristics of diabetic foot ulcers: other factors: tibial nerve damage results in what
Definition
calcaneo valgus and increased heel pressure
Term
mgmt of the diabetic foot: on the pt end (3)
Definition
daily foot exams (use a mirror for limited mobility)
properly fitted shoes
keen skin moisturized, avoiding between toes
Term
mgmt of the diabetic foot: on the medical end
Definition
Podiatry visits to remove callus, trim nails
Term
mgmt of the diabetic foot: NEVER DO THIS
Definition
never soak, causes maceration and lead to infection
Term
how many shoes and instert will medicare cover in a year?
Definition
1 pair of diabetic shoes, 3 pairs of inserts
Term
optimize healing for the diabetic pt: maintenance of normal blood sugars (2)
Definition
<140 mg/dl, A1C<6
Term
optimize healing for the diabetic pt: trauma
Definition
eliminate any sources
Term
optimize healing for the diabetic pt: how many wounds will heal just by offloading pressure
Definition
92% heal with offloading alone
Term
optimize healing for the diabetic pt: wound heailng basics (2)
Definition
reduce bioburden, moist wound healing
Term
irrigation with what PSI is neccessary to wash bacteria out without harming healthy tissue
Definition
4 and 15 PSI
Term
if there isn't the specific tool for irrigation, what can be MacGyver'd to create 8 psi of pressure
Definition
35 mL syringe with 19 gauge angiocath or needle
Term
if the A1C is above what level, healing will be impossible
Definition
8.5
Term
if a wound is not healing, what provider needs to come in and take a look?
Definition
dietician
Term
Wagner Diabetic Ulcer Classification 0
Definition
intact skin
Term
Wagner Diabetic Ulcer Classification 1
Definition
superfical ulcer
Term
Wagner Diabetic Ulcer Classification 2
Definition
deep ulcer
Term
Wagner Diabetic Ulcer Classification 3
Definition
deep infected ulcer
Term
Wagner Diabetic Ulcer Classification 4
Definition
partial foot gangrene
Term
Wagner Diabetic Ulcer Classification 5
Definition
full foot gangrene
Term
Interventions Based on Wagner Diabetic Ulcer Classification: pre ulcer (3)
Definition
modify foot wear, limit activity, remove callus
Term
Interventions Based on Wagner Diabetic Ulcer Classification: superficial (4)
Definition
PWB, relief padding, remove callus, splint/cast
Term
Interventions Based on Wagner Diabetic Ulcer Classification: Deep (5)
Definition
PWB, culture, probe, x-ray, cast/splint
Term
Interventions Based on Wagner Diabetic Ulcer Classification: deep infected (7)
Definition
PWB, culture, probe, x-ray, cast/splint, surgical consult, antibiotics
Term
Interventions Based on Wagner Diabetic Ulcer Classification: dysvascular (4)
Definition
splint, pwb, vascular studies, vascular consult
Term
which bacteria is the most common in an infection of the diabetic foot
Definition
streptococcus, gram +
Term
what are 3 bacteria that are also involved in the infection of the diabetic foot? what are their gram resutls
Definition
E coli, pseudomonoas (gram-), proteus (gram -)
Term
objective of total contact casting
Definition
reduce pressure on the plantar surface of the foot by incresaing the weight bearing surface area
Term
2 other benefits of total contact casting
Definition
immobilizes foot and ankle to facilitate healing, controls edema
Term
CROW orthosis is used for what
Definition
charcot restraint orthotic walker
Term
5 contraindcations to total contact casting
Definition
acute infections/osteomyelitis
tunneling
dermatitis
excessive swelling
patient adverse to casting
Term
nitric oxide is necessary for: -genesis (2)
Definition
angiogenesis, neurogenesis
Term
nitric oxide is necessary for: acids repair (2)
Definition
DNA/RNA repair
Term
nitric oxide is necessary for: amino acid that is a precursor to the production of nitric oxide
Definition
L-arginine
Term
nitric oxide is necessary for: (3)
Definition
cell division and maturation
vasodilation; relaxing the smooth muscle cells lining vessel walls
collage synthesis
Term
additional therapeutic modalities (6)
Definition
platelet derived growth factor (PDGF) aka Regranex
E stim
HBO
MIRE
Pulsed Lavage
Bio engineered tissue
Term
if a pt has a crow orthosis prescribe dthey will also need what?
Definition
darco shoe insert
Term
most important thing to do with a chronic wound
Definition
kill the bacteria
Term
if a pt with CHF has venous insuffiency ulcers bilaterally, what should you do in terms of wrapping the wound?
Definition
wrap one wound and let it heal before wrappign the other. wrapping bilaterally is dangerous
Term
when wrapping which nerve should be avoided and why?
Definition
avoid fibular nerve causes drop foot. wrap below fibular head
Term
if there is severe arterial insuffiency what is the assumption
Definition
they will most likely lose the limb
Term
when wrapping what is placed directly on the skin
Definition
cast padding (felt)
Term
what are other types of wrap used for insuffiency wounds
Definition
gauze wrap, ace wrap, coban
Term
which is the only layer that is wrapped in a figure 8?
Definition
ace wrap
Term
what are the 4 layers of wound wrapping from inner most to superficial
Definition
cast padding, gauze wrap, ace wrap, coban
Term
How are the gauze wrap, cast wrap, and coban wrapped
Definition
spiral pattern
Term
protocol for wrapping for moderate arterial insuffiency
Definition
only use 2 layers instead of all 4. see them everyday for the next 2 days assessing skin
Term
important note for surgical interventions for chronic venous insuffiency
Definition
only if there is 1 veins that is an issue
Term
calcium channel blockers can cause what issues in the legs (2)
Definition
swelling and clots in the legs
Term
how long is an ABI good for?
Definition
6 months
Term
if the gangrene is dry you must not let it get...
Definition
wet
Term
an arterial clot and this nerve compression disorder present the same
Definition
sciatica, so always check the skin
Term
kidney disease discussed in class
Definition
berger's disease
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