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interventional radio
| Question | Answer |
|---|---|
| What does PTA stand for? | percutaneous transluminal angioplasty |
| - therapeutic procedure designed to dilate or reopen stenotic or occluded area in vessel | PTA |
| - used to dilate strictures in venous structures, ureters, and GI tract | balloon angioplasty |
| How long is the balloon inflated with contrast? | 15-45 sec |
| - can be preformed virtually any vessel that can be reached percutaneously with a catheter | transluminal angioplasty |
| what is the most common form of arterial stenosis treated by PTA? | atherosclerosis |
| Long segments of occlusion are best treated how? | surgery |
| - result of deposits of a new plaque, not arterial wall collapse | restenosis |
| What kind of stents remain in the vessel permanently? | vascular stents |
| - involves therapeutic introduction of various substances to occlude or drastically reduce blood flow within a vessel | transcatheter embolization |
| What are the 3 main purposes of transcatheter embolization? | stop active bleeding sites control blood flow to diseased or malformed vessels stop or reducec blood flow to a particular area before surgery |
| - used to temporarily reduce blood flow by constricting the vessel | vasoconstricting drugs |
| - indicated for patient who has some type of ureteral or bladder blockage that causes hydronephrosis | percutaneous nephrostomy tube |
| - used to trap emboli to prevent pulmonary embolism resulting from deep vein thrombosis of lower limbs | inferior vena cava filter |
| - comprehensive term used to describe a minor surgical procedure involving the introduction of special catheters into the heart, great vessels, and coronary arteries | cardiac catherization |
| - is preformed to identify the anatomic and physiologic condition of the heart | cardiac catheterization |
| What is the most common disorder necessitating catheterization? | coronary artery disease |
| - colloect fluid from tissue spaces and transport it to blood-vascular system | lymphatic system |
| - main trunk of lymphatic system | thoracic duct |
| - radiologic exam of the lymph vessels and nodes through the use of a contrast media | lymphography |