IR Removal

Question 1

highly specialized medical equipment whose properties interact with that of the catheter to produce a safe and accurate method of catheter placement.

Answer 1

Guidewires

Question 2

The basic characteristics of a guidewire include

Answer 2

length, diameter, tip shape, core stiffness, taper, and coating.

Question 3

Standard Guidewire length

Answer 3

Standard guidewires are 145 cm long, (4 to 5 feet)

Question 4

often used because it is less traumatic, leading with a smooth curve rather than a straight tip, which can catch on atheromatous plaques and vessel origins.

Answer 4

J Tip

Question 5

The curve is described by its radius, usually ranging from __ to __ and chosen to match the size of the vessel.

Answer 5

1.5 to 15mm

Question 6

The outer diameter of the coil is the width of the guidewire and usually is expressed in inches

Answer 6

(0.018- inch, 0.035-inch, 0.038-inch).

Question 7

The standard diameter for guidewires used in diagnostic arteriography is

Answer 7

0.035 inches

Question 8

is the prime determinant of a guidewire’s overall stiffness.

Answer 8

MANDRIL/MANDREL CORE

Question 9

Why most standard guidewires are coated with Teflon?

Answer 9

to allow easy travel of the catheter over them.

Question 10

used to reduce wire thrombogenicity.

Answer 10

Heparin based coatings

Question 11

when wet, have an extremely low coefficient of friction.

Answer 11

hydrophilic polymer coatings

Question 12

All-purpose wire for navigating large to medium vessels, abscess cavities, etc.

Answer 12

Newton (Guidewire)

Question 13

Newton Stiffness

Answer 13

Medium

Question 14

Useful for visceral artery exchanges where extra (short support needed)

Answer 14

Rosen

Question 15

Rosen Stiffness

Answer 15

Stiff

Question 16

Rosen Stiffness

Answer 16

Stiff

Question 17

Bentson Tip and Stiffness

Answer 17

Straight with floppy tip / Very stiff

Question 18

good for crossing with small, tortuous vessels or stenosis

Answer 18

Bentson

Question 19

to guide large, stiff with catheters such as angioplasty balloons, stents, or relatively IVC filters, and for catheter exchanges

Answer 19

Amplatz

Question 20

Straight with relatively soft tip, Very stiff

Answer 20

Amplatz

Question 21

0.014-in. to 0.038-in. diameter. To guide the catheter into place during CVC (central venous catheter) insertions.

Answer 21

Glidewire

Question 22

Core stiffness – Soft to Stiff

Coating – Hydrophilic

Tip – Straight or angled

Answer 22

Glidewire

Question 23

0.010-in. to 0.018-in. diameter, made of steel, platinum, or nitinol

Answer 23

Steerable

Question 24

Core stiffness – Soft to Stiff

Coating – Teflon / Hydrophilic

Tip – Shapeable

Answer 24

Steerable

Question 25

It required the following, needles, wires, catheters, balloons, and stent. also are invaluable tool for interventionist.

Answer 25

CATHETERS

Question 26

It consists of a hub at the rear end and a distal tubular shaft.

Answer 26

Catheter

Question 27

should have strength, good torque control, radiopacity, flexibility, an atraumatic tip, and low surface friction for good trackability over a guidewire.

Answer 27

Ideal Catheter

Question 28

are the most important tool in any vascular intervention.

Answer 28

angiographic catheters

Question 29

is easy to shape and is commonly used.

Answer 29

Polyethylene

Question 30

Chemical Name of Teflon

Answer 30

polytetrafluoroethylene

Question 31

is slippery and can be used for passing through scar or graft material.

Answer 31

Teflon

Question 32

has good stiffness and torque-control characteristics

Answer 32

Nylon

Question 33

The most commonly used diagnostic catheters are

Answer 33

4fr to 5fr

Question 34

size of Diagnostic Ctheters and Coaxial Micro Catheters

Answer 34

3Fr / 2fr to 3fr

Question 35

is on the trailing end and is where syringes and injectors can be attached and wires

Answer 35

Hub

Question 36

provides length to the catheter to enable it to reach the target vessel.

Answer 36

Shaft

Question 37

of the catheter is tapered to fit the guidewire and facilitate atraumatic percutaneous insertion.

Answer 37

Tip

Question 38

Basic catheter used to study vessel punctured or vessels with straight take offs

Answer 38

Straight

Question 39

Large internal diameter, high flow capacity. Effective and safe method of draining pleural fluid.

Answer 39

Pig tail

Question 40

use for temporary ureteral occlusion and applications including, renal opacification, dislodgment of calculi and preventative calculi migration.  Large internal diameter, high flow capacity.

Answer 40

Berenstein

Question 41

helps in the cannulation of visceral arteries, such as renal, bronchial, or celiac arteries. Visceral Catheter

Answer 41

Cobra

Question 42

selective cervico cerebral artery catheterizations Requires reformation in the aortic arch or aortic bifurcation. for delivering contrast agents

Answer 42

Simmons

Question 43

useful for crossing aortic bifurcation

Answer 43

Mikkaelson