Vascular intro Flashcards
Heparin
Systemic anticoagulant
Inhibit natural clotting mechanism to prevent clot formation
Protamine
Anticoagulant
Reversal agent for heparin
Papavarine
Smooth muscle relaxant Prevent venospasm (or vasospasm)
Topical hemostatic agents
Promote clot formation on bleeding surfaces
Gelfoam; Thrombin; Avitene; Surgi-cel; Oxy-cel
Contralateral
Claudication
Bolus
Pertaining to the opposite side
Limping (FYI: often due to peripheral artery disease)
a dose of medication given all at once
Vasa vasorum
CAD
PVC
blood vessels that supply blood vessel walls
Coronary artery disease
Premature ventricular contraction
AAA
ASD
Abdominal aortic aneurysm
Atrial-septal defect
3 layers of artery/vein walls
Tunica intima
Tunica media
Tunica adventitia
Function of capillaries
Exchange of O2/CO2, wastes, and nutrients
3 similarities between arteries and veins
Same blood supply to vessel walls
Called: vasa vasorum
Regulated by autonomic nervous system
Connected by capillaries
5 characteristics of arteries
Thicker muscle layer (tunica media) Thicker-walled over all More elastic Maintain round shape when dissected Pulse is evident
5 characteristics of veins
More fragile than arteries One-way valves Fewer nerve fibers than arteries Lay flatter than arteries Smooth flow rather than pulsatile
Arteries
Veins
Flow away from heart
Return blood to heart
Pulmonary arteries
Send deoxygenated blood from the heart to lungs for oxygenation
Pulmonary veins
Carry oxygenated blood from lungs to the heart
Aneurysm
bulging or ballooning of arterial wall
Treatment option for an aneurysm
Resection and graft or endovascular stent graft insertion
Arterial Embolism
obstruction of an artery by debris such as blood clot or plaque
An acute condition
Treatment option for an Arterial Embolism
Immediate removal (emergent procedure), heparin therapy FYI: Also thrombolytics possible
6 P’s of arterial occlusion
Pain Pulselessness Paresthesia Paralysis (not complete usually) Pallor (paleness) Poikilothermia (“cold-blooded”)
Atherosclerosis
Abnormal condition; hardening; fatty plaque
A chronic condition
Treatment option for an Atherosclerosis
Surgical removal; bypass; stenting
Arteriosclerosis
Abnormal condition; hardening; artery/arteries
A chronic condition
Treatment option for an Arteriosclerosis
Medical only; no cure; manage HTN
DVT
Deep vein thrombosis
An acute condition
Treatment option for an DVT
Thrombolytics; anticoagulants
Possible vena cava filter or direct removal
PE
pulmonary embolism
An acute condition
Treatment option for an PE
thrombolytics; anticoagulants
Possible vena cava filter or direct removal
CVI
Chronic venous insufficiency
Treatment option for an CVI
Medical only; external pressure (Jobst stockings); surgical treatments have limited success
varicose veins
Dilated veins caused by incompetent valves in the superficial venous system (usually lower extremities)
Treatment option for an varicose veins
Sclerosing drugs
Surgical ligation and stripping (or microphlebectomy)
Heparin is measured in
units