DSA Vascular Assessment -Tyler Flashcards
3 most predictive exam findings for dx of acute stroke?
facial paresis
arm drift/ weakness
abnormal speech
Carotid artery stenosis is presence of atherosclerotic narrowing of _________ artery?
internal carotid
Carotid artery stenosis is considered ___________ if pt has not have TIA or ischmic stroke in the past 6 months?
ASYMPTOMATIC
Amaurosis fugax, contralateral weakness, aphasia and homonymous visual loss are all indicative of ?
SYMPTOMATIC carotid disease
Is it necessary to screen asymptomatic pt for carotid artery stenosis?
NO (annual risk of pt with ASYMPTOmatic carotid artery stenosis is LOW <1%)
What imaging is used to screen for CAS?
duplex ultrasonagraphy
What are 2 indications for screening with duplex ultrasonography?
- pt is ASYMPtomatic with a CAROTID BRUIT
2. SYMPtomatic atherosclerotic disease in another vascular bed (coronary, peripheral, aortic aneursym)
Used ______ index in patients with Diabetes as indicator of limb perfusion ?
Toe brachial
What are the next steps if pt has claudication with risk for PAD but the initial ABI is negative?
- perform excercise testing
2. repeat POST excercise ABI
What is Virchows Triad ( pathogenesis of DVT )
?
- alteration in blood flow
- vascular endothelial injury
- hypercoaguable state
An inheritable thrombophilia poses a risk for ____?
DVT (factor V leiden, protein C, S deficiency, Prothrombin mutation)
Unilateral edema, varying calf diameter, unilateral warmth/tenderness are all PE findings for _____?
DVT
Cancer, bedridden, dilation of veins could all lead to ?
DVT
Interpret an ABI
increased risk of cardiovascular morbitidy and mortality
interpret An ABI
more associated with decreased Physical activity than with claudication