Vascular Final Flashcards
Aorta is (high/low) resistance below the renal arteries?
High
Movement and direction of flow is know as?
Kinetic Energy
What must be present for flow to occur?
Pressure Gradient
_______ ________ is a basic principle of fluid dynamics?
Reynold’s Number
*>2000 flow is disturbed
Vasoconstriction and vasodilation typically occur where?
Capillaries
CFV has a (high/low) resistance profile?
High
If viscosity increases then resistance?
Increases
Which law states that a change in radius of a vessel can result in large change in blood flow?
Poiselle’s Law
Resistance and flow are ________ related?
Inversely Related
Hydrostatic pressure is equal to?
Gravitational Energy
Which artery terminates at the thoracic outlet?
Subclavian Artery
In a stenosis vessel the _______ ________ is the greatest at the level of the stenosis.
Kinetic Energy
Exercise causes vessels to (constrict/dilate)?
Vasodilate
Vasoconstriction occurs when the body is (heating/cooling)?
Cooling
Portal vein flow is (hepatofugal/ hepatopetal) with portal hypertension?
Hepatofugal
Which two veins join to form the innominate vein?
Subclavian vein and internal jugular vein
Which graft bypasses a single iliac artery obstruction?
Fem-Fem Graft
A _______ graft has a double-walled appearance.
Synthetic
The graft that leaves the vein in place and disables the valve is called?
In-Situation Graft
When doing a graft in the leg the vein should measure more than?
2.5 mm
Three characteristics of a normal venous study are?
Patency, spontaneity, respiratory physicity.
Standing (increases/decreases) vein diameter?
Increases
Venous insufficiency is also called?
Reflux
Perforator flow?
Superficial to deep
With DVT patients may be asymptomatic? (True/False)
True
IVC is (high/low) resistance?
Low
Which two veins join at the saphofemoral junction?
CFV and GSV
What three vessels make up the Mickey-mouse sign in the leg?
SFA, PFA(DFA), CFV
A pressure gradient is present in?
Capillary Beds
Force per unit equals?
Pressure
Spider veins are also called? And occur in the left subdermic system.
Telangiectasias
The vein of giacomini drains the?
GSV
Venous pooling reduces venous return to the heart and results in?
Decrease in cardiac output
Toward the head means?
Cephalic
Where in the body has the highest vascular pressure?
Heart
IVC drains into the?
Right atrium
Post-op, pregnancy, and trauma are all risk factors of?
DVT
The ________ ________ is the open space inside the vessel left by clot/ stenosis?
Residual Lumen
_______-________% blood flow is in the venous system?
75-80%
Supine hydrostatic pressure is ______mmHg?
15mmHg
Anterior Tibial arteries form the?
Dorsalis Pedis
Best indication for acute DVT is?
Acute unilateral edema
Arteries are ______ and veins are ______ in the leg.
Arteries> lateral
Veins> medial
Smaller saphenous vein drains into the?
Popliteal Vein
The vessel ______ has the greatest effect on flow/velocity through a vessel.
Radius
For every 12” below the heart there is _____mmHg of hydrostatic pressure.
22mmHg
Supine venous intraluminal pressure is ______mmHg.
10mmHg
Where are Boyd’s perforator veins located?
Knee
Sclerotheropy injections of superficial veins do what?
Induce Thrombus
More than 90% of PEs come from where?
Lower Extremities
Chronic thrombus has been present for longer than _____ weeks.
12 weeks
Name a reason to perform a renal artery study!
Hypertension
Banking probe along longitudinal axis is called?
Rocking
Vertebral arteries are (low/high) resistance.
Low
The Greater saphenous vein drains into the?
Common Femoral Vein
An abnormal communication between an artery and vein is called?
Fistula
Brown discoloration in the ankle and foot is called?
Stasis Dermatitis
Velocity (increases/decreases) resistance?
Increases
Soleal veins lie deep in soleal muscle and drain into the?
Posterior tibial veins
What three things make up the anterior tibial complex?
Two veins, one artery, and one nerve
Vein of giacomini can be seen as a continuation of?
Smaller saphenous vein
Intracranial circulation is (high/low) flow, and (high/low) resistance?
High flow, low resistance
Veins that are palpable, distended, and twisted are called?
Varicose veins
Vessel inferior to the adductor canal and superior to anterior tibial confluence is called the?
Popliteal vein
What is the most significant risk factor for DVT?
Diabetes
Peripheral resistance in capillary beds will not decrease in response to emotional stress? (True/false)
True
Which veins are a continuation of the dorsalis pedis?
Anterior tibial veins
Hydrostatic pressure is ______mmHg while standing?
25mmHg
GSV and LSV are superficial or deep veins?
Superficial
Hepatic artery, splenic artery, and superior mesenteric artery are all (low/high) resistance?
Low resistance
Anterior accessory saphenous veins is a tributary of the _______ that drains the anterior thigh?
Greater saphenous vein
Moving probe along skin cephalic or caudal is called?
Sliding
Burning sensation in the legs when exercising is called?
Venous claudication
When scanning the vein you want to stay _______ to the vessel?
Perpendicular
Which vein comes off the popliteal vein and runs superficially down the back of the leg?
Smaller saphenous vein
Medial and posterior calf muscles and foot are drained by the?
Posterior tibial veins
Branches off the aortic arch in order are?
Innominate/brachiocephalic
Left common carotid artery
Left subclavian artery
Symptoms of valvular insufficiency include?
Stasis dermatitis
Ulcers
Heaviness in legs
Gastric veins drains into which vein?
Popliteal vein
Psuedoaneurysm has what sign?
Ying-Yang sign
An endarterectomy will not be performed on a stenosis less than ____%?
60%
Which two veins joint to form the axillary vein?
Brachial and cephalic
_______ _______ is the return Doppler signal broken up into component frequency shifts?
Spectral Doppler
Amount of fluid moving past a certain point is called?
Volumetric flow rate
Second branch off the aorta is called the?
Superior mesenteric artery
How many valves do perforator veins have?
One
The gastrocnemius vein drains into the?
Popliteal vein
4th leading cause of death is?
Stroke
What is an object that breaks loose and gets lodged into a vessel?
Embolus
What must be present for flow to occur?
Pressure gradient
Which syndrome is after a DVT when valves become incompetent?
Post-phelbitic syndrome
Portal hypertension is seen with _______ of the liver?
Cirrhosis
CFA is (high/low) resistance?
High