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58 Cards in this Set
- Front
- Back
What are 5 catheters used in IR
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diagnostic angiographic catheters, microcatheters, drainage catheters, balloon catheters, and central venous catheters
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What are the factors to consider when deciding on the use of a diagnostic angiographic catheter
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these include size (the smaller the better for access but size limits the lumen), shape, radiopacity, torque capacity, and softness of the distal tip
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Can a diagnostic angiographic catheter be used as a guiding catheter for microcatheters or angioplasty balloon
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yes
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What is the size of a microcatheter
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3 french or smaller
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What are microcathers designed for
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very distal catherization
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What is the size of the guide wire for a microcatheter
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These catheters are placed over 0.010- to 0.018-inch guide wires
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What are microcathers primarily used to do
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neurointerventional cases
peripheral intervention for small vessel embolization or infusion |
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What are some types of drainages that a drainage catheter is used for
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of fluid collections, abscess, biliary gallbladder, pleural fluid, ascites, and lymphoceles.
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What is the size of a drainage catheter
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shape is usually based on the size of the fluid collection for drainage and the retention property.
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Is a pigtail catheter a type of drainage catheter
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yes
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What are the most common retention devices for drainage catheters
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sutures
mushroom tip inflatable ballon |
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What are 3 types of balloon catheters
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oclussion balloons
embolectomy balloon angioplasty balloons |
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What is a characteristic of a occlusion balloon
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soft and pliable.
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What is another name for an embolectomy balloon
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fogarty balloon.
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What does an embolectomy balloon look like
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What are the 2 main categories of embolectomy balloon catheters
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Balloons for dilation can be divided into two main categories regarding the size of guide wire over which they are placed: 0.018 inch (or even smaller, including 0.014 inch) and 0.035 inch
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What is most common balloon catheter
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the ones placed over the 0.035 inch
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Do large balloons require the use of an introducer sheath
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Large balloons require large access sites (introducer sheaths), especially for removal after inflation, as they do not re-wrap very well.
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What is the sequence of events for angioplasty
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an introducer sheath then a guid wire and then a cathether in the introducer sheath but over the guide wire
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http://irtreatment.org/resource.html
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http://irtreatment.org/resource.html
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What are the primary characteristics of guidewires
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length, diameter, tip configuration, torqueability, stiffness, and composition
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What are standard guidewires made of
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Standard guidewires are made of a stainless
steel coil wrapped tightly around an inner mandril that tapers at the working end of the wire. |
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When are hydrophilic guidewires useful
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diseased or tortuous vessels
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What are the standard guidewire diameters
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0.035 and 0.038
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What is the diameter of smaller guidewires
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0.014 and 0.018
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When are the smaller diameters wires used
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microcatheters adnd small caliber needles
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What is the length of a standard guide wire
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125-145cm
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What are longer wires called
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exchange wires
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What are catheters made of
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polyurethane, polyethylene, nylon or teflon
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What is done so a catheter is more torqueable
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wire braiding
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What is done to a catheter to make it more trackable
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coating with a hydrophilic polymer
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How big is 3 french
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1mm
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What does french refer to
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the outer catheter diameter
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What are 3 types of catheters
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straigh catheter
reverse curve catheters pigtail-type catheter |
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Can a straight catheter be reshaped
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yes, if it is non-braided it can be reshaped by heating them under a steam jet
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What are 6 types of catheters available
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straight catheters
reverse curve catheters pigtail catheters sheath guiding catheters microcatheters |
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What is the function of a sheath
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thin walled valved supportiong caheter placed when there is persistent oozing or hematoma at
the access site, multiple catheter exchanges are expected, a prolonged procedure is anticipated, or vascular intervention is planned |
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Can contrast be injected through the side arm around guidewires or non-occlusive catheters when a sheath catheter is being used
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yes
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How big is a sheath catheter compared to its stated french size
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outer sheath diameter is 2 sizes larger than the stated french size
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What is a guiding catheter
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allow safer more secure passage of device into a vessel (renal arter stent) these are inserted through a larger sheaths at the vascular access site
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What is a microcatheter
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are placed through standard angio-
graphic catheters to allow entry into small or tortuous arteries. They are guided by small-caliber (e.g., 0.014 to 0.018 inch) steerable guidewires. |
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What are the indications for pressure measurement
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Intravascular pressure monitoring is primarily used to
determine the hemodynamic significance of stenoses, assess the results of revascularization procedures, and diagnose pulmonary artery or portal venous hypertension. |
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What are the commonly used guidewires
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What does a straight catheter look like
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What does a spinal catheter look like
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What does a cobra catheter look like
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What does a angled shape look like look like
(fix names spinal, cobra, head hunter, angled |
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What does a brookstein curved catheter look like
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What does a simmons (side winder) curved catheter look like
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What does a shetty curved catheter look like
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What does a visceral hook look like
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What are the reverse curve catheters
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F l G U RE 2-21 #% Basic reverse-cuwe cathe-
ters. Left to right, Bookstein, Simmons (side- winder), Shetty, and visceral hook. |
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What are the straight curve catheters
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FIGURE 2-20 Basic straight angio-
graphic catheters. Left to right, spinal, cobra, headhunter, and angled shapes. |
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How is a simmons catheter reformed in the aortic arch
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How is the simmons catheter reformed in the common iliacs
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What is considered a significant resting systolic gradient in the arterial system
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10mmhg
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What is considered significant in the venous system
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2-3mmhg
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What are 3 types of high flow catheters
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