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RAD 212 - Special Procedures > Ch 1-4 Quiz > Flashcards

Ch 1-4 Quiz Flashcards

1
Q

Which needle is bigger in diameter? An 18 or 26 gauge needle

A

18 gauge needle

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2
Q

Angiography is the general term used for what system?

A

Vascular system

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3
Q

What may be placed into a vessel during a cardiac catheterization to help open up the vessel?

A

Stent

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4
Q

When using a C-arm in surgery, a high patient dose results from what two things?

A

High mA and kVp and exam length

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5
Q

What is a computer assisted program that can help improve image quality when looking at vessels? It can remove bone etc…

A

Digital subtraction

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6
Q

A heating device on an automatic injector will help with the _________ of the contrast.

A

Viscosity

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7
Q

When you have a higher flow rate of contrast, should you use a smaller or larger needle?

A

Larger

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8
Q

Which type of needle is recommended when using an automatic injector? Angio-catheter or butterfly

A

Angio-catheter

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9
Q

What kind of tube is used to assist the patient though a number of respiratory problems?

A

Endotracheal

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10
Q

The most common site for a central venous line is in the ________ vein.

A

Subclavian (towards clavicle)

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11
Q

After injecting through a port-a-cath, what should be used to flush it clean?

A

Heparin and saline flush (heparin usually given by nurses)

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12
Q

This type of catheter is used to monitor the heat’s function and blood flow.

A

Swan-Gartz/pulmonary arterial line

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13
Q

What is the name of the stainless-steel wire that are enclosed by a plastic catheter used in angiography?

A

Guide wire

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14
Q

(1845-1923) 1st to produce x-rays

1st Nobel winner in Physics

A

Wilhelm Conrad Roentgen

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15
Q

Radiographic method of demonstrating certain anatomic features that lack natural contrast with surrounding structures by the instillation of a substance to produce structural contrast
Mostly in vessel, need contrast to see it

A

Special procedure

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16
Q

Performed to identify a particular pathologic process

Used to localize certain vessels or tumors prior to the performance of therapeutic procedures

A

Diagnostic procedures

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17
Q

Diagnostic procedure of the arterial system
CT vs CTA = CTA uses more contrast
Do one with and one without contrast

A

Arteriogram

18
Q

Vessel system in brain

A

Circle of willis

19
Q

No blood flow

A

Occlusion

20
Q

Diagnostic procedure best for venous system but can also see arteries

A

Venography

21
Q

Performed to read the pathologic process (ex: heart treatment)

A

Interventional procedures

22
Q

May require a Stent to open the vessel

Will affect blood pressure

A

Cardiac catheterization

23
Q

Minimum size = 400 square ft
4 ft wide doorways
Patient holding and monitoring area
Adequate radiation protection
Scrub area
High performance generator = typically use 700-1500 mA-80-100 kVp
May have to allow cooling time for the machine

A

Interventional radiography room

24
Q

These units cause the greatest patient doses of all diagnostic radiographic procedures, although they provide very high image quality
Used most often in cardiology and neuroradiology
Uses a “movie camera” to record the image from the image intensifier
Special care must be taken to ensure that patients are exposed at minimum acceptable levels

A

Cinefluorography - C-Arm - used in surgery

25
Q

5 components of automatic injectors

A 
Control panel
Syringe
Heating device
High pressure mechanism
Tubing
26
Q

Pushes a predetermined amount of contrast into the tubing to displace air

A

Prime button

27
Q

Enables operator to confirm that no air is in the fluid path at the injector head to reduce the risk of an air injection

A

Remote check for air

28
Q

Enables the operator to arm the injector from the injector head

A

Remote arming

29
Q

Component of automatic injector that helps with viscosity of contrast; at or near body temperature

A

Heating device

30
Q

Touch screen on automatic injector that shows you: how much contrast is in syringe (usually hold about 200 cc), flow rate, how much you’re going to inject, if you want the injector “armed”, “dead man” type switch on the side, red and yellow buttons to start and stop injection, common screen displays and graph of flow when contrast is going in patient

A

Control panel

31
Q

Injection speed, can be increased or decreased (1 slow-5 fast); will peak then “flat line”

A

Flow rate

32
Q

Pushes the contrast through
Can prevent injections from exceeding their preset volume, flow rate and pressure
When you inject a lot of contrast at a fast flow rate, this creates pressure in the vessel therefore if you use a fast flow rate, it’s recommended to use a large needle so the pressure is lessened
There is an emergency stop if you see there is an extravasation getting ready to occur

A

High pressure mechanism

33
Q

Why will you never use a butterfly needle with an automatic injector?

A

Too small gauge needle
Not secured within the vein well enough for the pressure of the automatic injector
Good for a quick hand injection or drawing blood

34
Q

3 types of chest tubes and lines

A

Endotracheal tubes
Central venous lines
Pulmonary arterial lines

35
Q

Inserted into a large vein to administer drugs, manage fluid volume, transfuse and analyze blood and monitor pressures within the heart
Used for patients who have to get multiple injections daily or hard to find a vein when hospitalized
Most common site is the subclavian vein, other common sites include the internal jugular and femoral veins

A

Central venous lines/central venous catheters and venous access device

36
Q

Implanted ports are desired when access is required intermittently over a long period of time
Usually patients who have to get chemo treatments or a patient who has to get their blood drawn a lot will think about getting this

A

Port a cath-venous access device

37
Q

Passing of a thin tube (catheter) into the right side of the heart and the arteries leading to the lungs; it’s done to monitor the heart’s function and blood flow

A

Pulmonary arterial lines/Swan-Ganz catheters

38
Q

Long, thin, hollow tube that a doctor or nurse puts into a vein above the bend of you elbow and guided into a large vein in the chest near the hear; used to give chemo and other medicines and can stay in place until treatment is over

A

PICC line (peripherally inserted central venous catheter)

39
Q

Act as a pipeline for transporting the contrast agent from an external source to a location within the body
Type used based on what anatomic structure the physician wants to get into and how long it will be kept in place

A

Catheter

40
Q

3 types of catheter materials (up to hospital/radiologist preference)

A

Teflon
Polyurethane
Polyethylene

41
Q

What unit is catheter size expressed in (radiologist preference)?

A

Millimeters or French number (Cherriere)

42
Q

3 types of catheters

A

Angled
Curved
Recurved

RAD 212 - Special Procedures (6 decks)

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