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what are the three factors for virchows triad
hypercoagulability
vein wall injury
venous stasis
what are the risk factors for DVT
over 40 yrs old
malignancy
previous DVT or PE
immobilization
fracture of the shoulder
myocardial infarction
pregnancy
symptoms of a DVT
arm swelling
pain or tenderness
venous distention
increased temp or redness
superficial venous dilation
peripheral veins return _____ blood to the heart
deoxygenated
venous system of the extremities consist of ____, ___, and ____ veins
superficial, deep, perforating
what veins provide channels between superficial and deep veins
perforating veins
venous blood goes from ___ to ____
superficial; deep
what are the valves made of
folds of intima
what are the layers of the vein from outermost to inner
adventitia, media, intima
are the valves of the vein bicuspid or tricuspid
bicuspid
where are venous valves located
near vein confluences
where are venous valves more numerous
distal leg
what do the venous valves help to maintain
unidirectional blood flow from peripheral veins to central veins
what do the venous valves help fight against
hydrostatic pressure
what veins drain the hand
superficial and deep palmar venous arches
T/F: radial veins accompany radial artery and ulnar veins accompany ulnar artery in the forearm
true
where is the typical place for the radial and ulnar veins to join
antecubital fossa
what do the radial and ulnar veins join to form
brachial veins
brachial veins are ___ veins that travel with the brachial artery in the ___ arm
paired; upper
T/F: the axillary vein is a paired vein
false; single vein
where does the axillary vein begin
where the basilic vein joins the brachial veins in the upper arm
where does the axillary vein terminate
beneath the clavicle at outer border of the first rib
what joins the axillary vein near its termination
cephalic vein
what vein is a continuation of the axillary vein
subclavian vein
the subclavian vein extends from the outer border of the ___ ___ to the inner end of the ___
1st rib; clavicle
at the inner end of the clavicle the subclavian vein joins what
internal jugular vein
what does the internal jugular vein and subclavian vein join to form
innominate vein
the subclavian vein lies beneath the clavicle and is ___ and ___ to the subclavian artery
inferior and anterior
on the right side the right innominate vein courses almost ___ downward joining the left innominate vein just below the first rib
vertically
when the right and left innominate veins join what do they become
superior vena cava
the right innominate vein lay _____ and to the ________ of the innominate artery
superficial; right
the right innominate vein receives what 3 veins
right vertebral, internal mammary, and inferior thyroid veins
which innominate vein is longer
left
what does the left innominate vein receive
left vertebral, internal mammary, inferior thyroid, left superior intercostal veins
what is the primary route of drainage in the upper extremity
superficial veins
the superficial veins lay beneath the skin and between two layers of ___ _____ and outside deep ____ fascia
superficial fascia; investing
where does the cephalic vein begin
thumb side of the dorsum of the hand
where does the cephalic vein join the axillary vein
just below the clavicle
where does the basilic vein originate
small finger side of the dorsum of the hand
is the basilic vein small or large
large
the basilic vein courses ____ along the inner side of the biceps muscle
medially
what does the basilic vein join in the upper arm
brachial
in the upper extremity pulsatile signals should be present in the___, ___, ___, and ___ because of retrograde transmission of right atrial pressure
jugular, subclavian. innominate, SVC
in the upper extremity venous doppler signal will ___ with inspiration
increase
in the upper extremity venous doppler signal will ___ with expiration
decrease
when using color flow on the veins in the arm what is the best way to do it
sag/longitudinal
what is a DVT characterized by
abnormal coagulation of red blood cells
T/F: Thrombi can be isolated to one vein or be in multiple veins
true
what is the condition in which a venous thrombus dislodges
from the vein wall, and propagates to the arteries of
the lungs, and causes a pulmonary embolism
VTE - venous thromboembolism
when is a thrombus considered chronic
being over a week old
T/F: acute DVT are only asymptomatic
false
what is phlegmasia alba dolens
swollen painful white leg
what is phlegmasia cerulea dolens
swollen painful cyanotic leg
what are common anticoagulants
heparin, warfarin, and lovenox
what do antiplatelet agents do when taking themย
prevent further clot formation by decreasing platelet aggregation
a ____ DVT is more dense and often calcified
chronic
does an acute DVT or chronic have more of a chance for propogating a PE
acute
a ___ DVT gives symptoms typically to the entire extremity
chronic
what can be caused by venous obstruction and or incompetent venous valves
venous hypertension
what can the presence of a thrombus on or around venous valves cause
damage to them, making them incompetent
_____ varicose veins are congenital, stemming
from an inherent weakness of the venous walls, and
occur without coexisting deep venous disease
primary
______ varicose veins occur secondary to
pathology (chronic DVT) of the deep venous system
secondaryย
Clot formation that exists in the superficial venous
system is known as a
superficial venous thrombosis (SVT)
what is a common location for an SVT
in or around venous valvesย
the presence of chronic SVT can cause ___ ___
valvular incompetence
______ flow is continuous and present without augmentation maneuvers
spontaneous
what means that the blood flow velocity changes with respiration
respiratory phasicity
______ signals should be present in the jugular,
subclavian, innominate, and SVC
pulsatile
there are approximately ______ fatal PEโs each year
300,000
upper extremity DVT is approximately __ % of all DVTs
4
what is a high risk factor for DVT is the arm
indwelling catheters
what term is used for the state of unmoving blood
stasis
venous valves fight against the effect of ____ ____
hydrostatic pressure
compressions of the arms for a DVT should be every ___ - ___ cmย
2;4
perforating veins carry blood from the ____ veins to the ____ veinsย
superficial; deep
what is a medical condition in which blood clots form in the deep veins in the arm; typically subclavian caused by the 1st ribย
paget-shrotter syndromeย
what is another name for paget-shorter syndrome
venous thoracic outlet syndrome
what is paget-shorter syndrome usually seen
in younger patients after repeated strenuous activity of the shoulders and arms
what originates from the union of the subclavian vein with the internal jugular vein
innominate/ brachiocephalic vein
which innominate vein is longer
the left
the left and right innominate/brachiocephalic vein join to form the ____
SVC
this vein is located in the neck that lies lateral to the carotid artery
internal jugular vein
this vein lies in the neck posterior to the internal jugular
external jugular vein
what vein is made by the union of the axillary and cephalic vein
subclavian vein
why are the subclavian veins hard to compress
the clavicle
what is the most common place to get a venous aneurysm
subclavian vein
what is the short vein found in the axilla of the arm
axillary vein
what is the axillary vein made by
brachial and basilic
is the axillary or the subclavian vein more pulsatile
subclavian
the radial and ulnar veins form the ___ veins at the elbow
brachial
There are often two veins that run on either side of
the radial artery and anastomose freely with each
other. It forms in the hand from the deep palmar
venous arch
radial veins
They arise from the deep venous palmar arch and run
superiorly in the deep anterior compartment of the
forearm. They have a companion artery. They terminate in the cubital fossa to form the brachial veinsย
ulnar veins
what system carries more blood in the arms
superficial
the superficial veins in the arm do or do not travel with a companion artery
do notย
what is the most used superficial vein for line placement
basilic
Originates on the small finger side of the dorsum of
the hand and enters brachial veins in the upper
arm
basilic vein
Originates on the thumb side of the hand and joins the
axillary vein before it enters the subclavian vein.
cephalicย
what is an arteriovenous fistula used for
dialysis
what does an arteriovenous fistula connect
an artery and vein usually in the upper extremity