advanced positioning midterm quiz 6
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| Angiography | the radiographic study of vascular structures after the introduction of contrast
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| Arteriography | radiologic examination of the arteries via contrast injection
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| Arterioslerotic | pathologic condition characteristic of thickening and hardening of arterial walls, leading to general loss of elasticity.
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| Arteriovenous malformation | abnormal anastomosis or communication between an artery and vein.
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| Guidewire | tightly wound metallic wire over which angiographic catheters are placed
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| Ischemic | indicative of local decrease in blood supply to myocardial tissue associated with temporary obstruction
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| Portal circulation | system of vessels carrying blood from organs of digestion to the liver
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| Venography | radiographic examination of veins via contrast injection
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| Stenosis | narrowing of a vessel
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| Occlusion | blockage of a vessel
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| Contrast media used for angiographic studies | opaque contrast containing organic iodine solutions
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| What is done for patients with predisposition to a severe reaction to contrast? | CO2 is used
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| What contrast is primarily used for MRI? | gadolinium
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| Explain the Seldinger method | both walls of the vessel are pierced, the needle is retracted, guidewire is inserted and traction is held while the needle is removed and replaced with the catheter.
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| What form of anesthesia is used for catheterization? | local
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| The entire program for cerebral angiography takes how long? | 7-10 seconds
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| What is the injection rate for cerebral angiography? | 5-9mL/sec for 1-2 sec
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| What is the most definitive procedure for visualizing the coronary anatomy? | coronary angiography?
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| Complications for cardiac cath: | vasovagal reaction, stroke, heart attack, death, bleeding at puncture site, nerve, vessel or tissue damage, allergic reaction.
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| Purpose for pulmonary arteriography | evaluation of pulmonary embolic disease
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| Vessels demonstrated during pulmonary arteriography include: | pulmonary arteries, R atrium, L ventricle, Thoracic aorta
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| Purpose for cerebral angiography | investigate intracranial vascular lesions (aneurism, AVM, tumor, atherosclerosis, stenosis)
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| Percutaneous transluminal angioplasty | therapeutic procedure used to dilate or reopen stenotic or occluded area of a vessel
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| Balloon angioplasty is used to: | dilate strictures in venous structures, ureters and GI tract.
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| Indications for cardiac cath | obstructive coronary artery disease, thrombus formation, coronary artery collateral flow, coronary anomalities, aneurisms, spasms, artery size.
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| Most common catheter introduction site for cardiac cath: | femoral artery
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| Secondary catheter introduction site for cardiac cath: | radial, brachial, axillary, jugular, subclavian
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| General indications for cardiac cath: | identify anatomic and physiologic conditions of the heart
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