Peripheral Vascular HA Exam #3

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1
What do arteries do?
pump O2 rich blood to all body tissues
pressure wave -- "pulse"
2
What are the accessible pulse locations?
Temporal
Carotid
Brachial
Femoral
Popliteal
Dorsalis Pedis
Posterior Tibial
3
Why do you feel arteries for pulses?
arteries are closer to the skin
more superficial
4
What kind of pressure system are arteries?
high pressure system with thicker vessel walls
5
What do veins do?
absorb CO2 and waste products from periphery and carry them back to the heart
6
Where are veins?
Jugular Vein
Veins in arms and legs
7
What kind of system are veins?
low pressure system with thinner walls that allow for venous pooling
8
If the heart is not ready...
veins can pool
9
What prevents backflow of blood in veins?
intraluminal valves = one way valves that prevents regurgitation
10
What helps with venous blood flow?
skeletal muscle contractions help blood go back to the heart
alternate contraction and relaxation
11
What do veins reduce?
preload on the heart
12
Subjective data: Leg pain or cramps
Intermittent claudication
Claudication distance
13
What is intermittent claudication?
pain with walking that usually resolves with 2 minutes of rest
usually in calves, thighs and butt
early sign of peripheral arterial disease (PAD)
14
What is claudication distance?
number of blocks walked or stairs climbed to produce pain
15
As intermittent claudication gets worse...
claudication distance gets shorter
16
Subjective data: skin changes on arms or legs
check bilaterally -> skin temp
color/ good perfusion
coolness = arterial issues
heat and inflammation = venous issues (not pulling trash out)
Varicose veins
17
What causes higher risk varicose veins?
genetics
pregnancy
obesity
18
Subjective data: smoking history
start smoking at 16 or younger double risk of PAD
19
Subjective data: swelling
bilateral edema -> symptom of heart failure, usually swelling lower extremities often hands and if really bad in face
unilateral edema -> embolism or clot that causes an obstruction
20
Subjective data: lymph node enlargement
node filters the infection and becomes irritated and swollen
21
What do the lymphatics do?
retrieves excess fluid and plasma proteins from interstitial space and returns it to the bloodstream
22
Subjective data: medications
Hormone Replacement Therapy (HRT)
Oral Contraceptive Pills (OCP)
23
During a complete physical examination..
- examine arms with vital signs and person is sitting
- examine legs while person is still supinel then stand person up to evaluate leg veins (should NOT see ropes)
- room temperature should be about 22ºC ans free of drafts to prevent vasodilation or constriction
- use inspection THEN palpation
- compare with opposite extremity
24
Upper Extremities: Inspection and Palpate
Skin: color, cap refill (<2 seconds)
Profile sign: view finger to detect clubbing
- Vasoconstriction
- Hypovolemia
- Early Congestive Heart Failure
25
If no hair on legs because of shaving...
look at dorsal part of great toe
look for signs of hair growth
no hair due to laser hair removal just document that or well shaved
26
What is an abnormal cap refill?
GREATER (>) THAN 2 SECONDS IS ABNORMAL
27
If cap refill is 4 seconds with normal pulse and vitals ,what do you do?
investigate
28
Upper Extremities Pulses: Palpate
palpate pulses, note rhythm, elasticity of vessel walls, and equal force
29
What are the upper extremity pulses?
brachial
radial
ulnar
30
Where is the brachial pulse found?
furrows of the biceps
in between triceps and biceps
31
Where is the radial pulse found?
thumb side of wrist
note rate--can complete with vital signs
32
Where is the ulnar pulse found?
pinkie side
hard to palpate, can phone a friend or use a doppler
33
If you can't feel the ulnar pulse, cap refill <2 seconds, skin is warm, what do you do?
ask someone else to palpate it
34
What are the grade forces on a three-point scale?
3+ increased, full, bounding (someone who just worked out, anemia, has a fever)
2+ normal
1+ weak (elderly, someone in shock)
0+ absent
35
What is the Modified Allen Test used for?
used to evaluate collateral circulation prior to radial artery puncture
suggests adequate circulation
used in ABG collection
crude/ subject to error
36
How many pounds of pressure is needed for the Modified Allen test?
have to use 11 lbs of pressure
blood flow should return 7 seconds or less
37
What is the best measurement of blood flow?
doppler
38
Lower Extremities: Inspect and Palpate
Skin
Hair distribution
Venous pattern (should be flat and barely visible
Size-any swelling or atrophy (muscles getting smaller)
Skin discoloration, skin ulcers or gangrene (document size/measure in cm or mm and exactly where it is)
39
Where are varicose veins seen?
standing because gravity is pulling it down
40
How do you measure swelling?
tape measure at widest part of calf on unaffected and affected leg in the SAME SPOT
> 1 cm is pertinent
2 cm or great = DVT
41
Where is the most common site of venous ulcers?
medial malleolus
(where they start)
42
Where is the lateral malleolus?
ball on the outside
arterial ulcers
43
What is gangrene on tips of toes a common sign of?
arteries not perfusing
44
What are the lower extremity pulses?
Femoral
Popliteal
Posterior Tibial
Dorsalis pedis
45
Lower Extremities Pulses: Palpate
Palpate pulses, note rhythm,elasticity of vessel walls, and equal force
46
Where is the femoral pulse?
sit frog leg and palpate near the groin
will palpate mainly on children
47
Where is the popliteal pulse?
behind the knee
very difficult to find
48
Where is the posterior tibial pulse?
between medial malleolus and achilles
49
Where is the dorsalis pedis pulse?
top of foot
big tow, halfway up, move laterally
one finger usually sufficient
50
What do you need to remember to use if you can't find a pulse?
the doppler
51
What do you document for grading a pulse sound with a doppler?
audible pulsatile sounds
52
If you can feel the pulse on dorsalis pedis, what can you infer about the popliteal pulse?
if you can't find it, it is the same since it is still present
2+ for dorsalis pedis, 2+ for popliteal
53
What does pretibial edema stand for?
in front of the tibia swelling
54
How do you check for pretibial edema?
firmly depress skin over tibia or medial malleolus for 5 seconds and release
normally your finger should leave no indentation
pit is commonly seen if person has been standing all day or during pregnancy
55
Is edema a venous issue or a arterial issue?
venous issue
only use compression socks if there are NO arterial issues
56
What are the gradings of edema?
1+ mild pitting, slight indentation, no perceptible swelling of leg
2+ moderate pitting, indentation subsides rapidly
3+ deep pitting, indentation remains for short time, leg swollen
4+ very deep pitting, indentation lasts a long time, leg VERY swollen
SCALE IS SUBJECTIVE
57
Standing assessment of venous system
Note any visible, dilated and tortuous veins (old fraying rope)
If present, varicose veins cause pain, swelling, fatigue, and cramping
58
What is arterial insufficiency?
thickening and loss of elasticity of arterial walls
59
What is venous insufficiency?
chronic incompetent valves in deep veins or clot
risk of infection
60
Color
arterial--pale, cyanotic, mottled
venous--may be reddish-blue
61
Temperature
arterial--cool to cold
venous--warm
62
Skin characteristics
arterial--thin, shiny skin, dependent rubor, elevation pallor of foot
venous--firm, brawny, brownish pigmentation in area between medial and lateral malleolus, skin thickened and tough, cyanosis when dependent
63
Nails
arterial--thickened and ridged
venous--not thickened
64
Distribution of hair
arterial--loss of hair over toes and dorsum of foot
venous--present
65
Edema
arterial--none or minimal, lift leg up and doesn't drain/help
venous--moderate to severe; pitting; ankle, foot, lower leg, lift leg up and swelling goes down
66
Pulses
arterial--decreased or absent
venous--present but may be difficult to palpate through edema
67
Pain
arterial--intermittent claudication (relieved by rest)
venous--aching, cramping, feeling of fullness, relieved by elevation
68
Ulcers
arterial--between toes or tips of toes, heels, lateral malleolus, well-defined edges, deep, circular ulcer base-black or gangrene; non-bleeding
venous--medial malleolus and lower leg; uneven edges, superficial, ulcer base-granulation tissue-beefy red to yellow; bleeding; may or may not be painful
69
Arterial vs Venous Ulcers
arterial--usually cleaner cut
venous--rigid and more nasty
70
Wells Criteria pg 522 ****
measures probability for DVT
3 points for high probability
71
AEIS? *** pg 522
way of measuring, determining or screening for PAD
ankle pressure and brachial pressure
72
Reynauds pg 527 ****
get cold and hands turn blue
73
Lymphedema ****
breast mastectomy in left arm = don't take BP in left arm
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