Shared Flashcard Set

Details

103
Carotid Scan
27
Medical
Professional
10/01/2011

Additional Medical Flashcards

 


 

Cards

Term
Common carotid artery (CCA) arises from the __________ __________ on the __________ side, and from the __________ (a.k.a. __________) on the __________ side.
Definition
aortic arch, left, innominate, Brachiocephalic, right
Term
The CCA __________ into __________ __________ __________ and __________ __________ __________ at about the level of the __________ __________.
Definition
bifurcates, internal carotid artery, external carotid artery, laryngeal prominence
Term
The __________ __________ __________ perfuse the eyes and the brain.
Definition
internal carotid artery
Term
The __________ is perfused by the two carotid and two __________ arteries
Definition
brain, vertebral
Term
The Ophthalmic arteries arise and branches from the __________ __________ __________ just proximal to the __________ __________ __________.
Definition
internal carotid arteries, , Circle of Willis.
Term
The __________ __________ __________ perfuse the face and __________.
Definition
external carotid arteries, scalp
Term
The internal carotid artery is usually the __________ and __________ artery and the external carotid artery is usually the __________ and __________ artery.
Definition
larger, lateral (posterolateral), smaller, medial (anteromedial)
Term
Most strokes are caused by __________ __________ at the __________ __________.
Definition
atheromatous (atherosclerotic) plaque, carotid bifurcation.
Term
Hold the probe __________ with the __________ and the tip of the __________ while the wrist is in a __________ position.
Definition
gently, fingertips, thumb, neutral
Term
Hold the probe somewhat sideways--don't try to __________ your fingers in the __________ of the __________.
Definition
point, direction, beam
Term
IMPORTANT! Don't let your __________ stick out to the side. Just let it drop relaxed from the __________. This keeps you from bending at the __________ to the "__________ __________ __________."
Definition
elbow, shoulder, wrist, carpal tunnel position
Term
The two scan planes are __________ and __________.
Definition
Transverse (short axis), Sagittal (long axis or longitudinal)
Term
To orientate yourself to the screen, __________ is always at the top and __________ is farther down.
Definition
superficial, deep
Term
To orientate yourself in transverse, always remember that medial is on the __________ on the __________ and on the __________ on the __________. To check your orientation, move the probe a bit medial and watch where the __________ comes into the screen. Also,look for the __________.
Definition
right, right, left, left, tissue, thyroid
Term
To orientate yourself in sagittal, always remember that the __________ are always to the __________ of the screen. To check your orientation, move the probe toward the __________. __________ should come into the screen from the __________.
Definition
feet, right,feet, tissue, right
Term
There are only four basic probe movements. __________ is sweeping the beam across its axis. __________ is turning the beam around its axis. __________ is rocking the beam along its axis. __________ is moving the probe across the skin.
Definition
Angling,Rotating, Rocking, Sliding
Term
The three approaches on the neck are __________, __________, and __________. __________ is almost always the best image quality. These refer to the position of the probe relative to the principal landmark on the neck: the __________ __________.
Definition
anterior, lateral, posterior, lateral, sternocleidomastoid muscle
Term
When the artery is not centered on the screen in transverse, you should __________ the beam to move it to the center of the field of view.
Definition
rock
Term
When the ends of the vessel are closed off in sagittal, you should __________ the beam to line up with the artery.
Definition
rotate
Term
If the walls of the vessel are fuzzing out while in sagittal, you should __________ the beam to send the beam through the largest diameter of the artery.
Definition
angle
Term
If the artery is not level in the field of view while in sagittal, you should __________ the beam to level it out.
Definition
rock
Term
__________ is almost always the right depth for most carotid patients.
Definition
Four centimeters
Term
__________ is the amount of amplification of the return echoes. __________ __________ is the overall amplification.
Definition
Gain, Master gain
Term
To compensate for loss of echo strength or attenuation at deeper structures, you can adjust the __________ __________ __________ which controls gain at different depths.
Definition
time gain compensation
Term
The TGCs usually need to be pulled down at the __________ field to keep from being too __________ and __________ in the far field to keep it from being too __________.
Definition
near, bright, boosted, dark
Term
Transverse scan: Start __________ in the neck at the __________ CCA. Confirm the correct __________ of the screen. Keeping the artery __________ at all times, move __________ to the __________,identify the __________ and __________, then follow the __________ as far __________ as possible. Change beam angle and approach if necessary to get as far up the __________ as you can. Make all your movements smooth; don't let the artery swim or jerk back and forth in the field. It is usually best to start with a somewhat __________ approach __________,gliding around more __________ as you move __________; this will usually improve the image as you move up.
Definition
low, proximal, orientation, centered, distally, bifurcation, ICA, ECA, ICA, distally,ICA, anterior, proximally, laterally, distally
Term
Sagittal scan: Start low in the __________. Confirm the correct __________ of the screen (__________ to the __________). Move __________ to the __________, keeping the __________ __________ at all times. Once again, start with an __________ approach in the __________ __________, gliding to a more __________ approach as you move up. This will make the image clearer than staying in the __________ approach, wich tends to make for a fuzzy-looking artery. When you reach the __________, perform the bifurcation maneuver to identify ICA and ECA, keeping the CCA open to the right of the screen as you show its continuity with one branch, then the other. Remember, if it's difficult to show the ECA, try changing approaches. Follow the ICA as far distally as possible. Remember to keep the beam __________ to the artery; don't aim the beam up the neck in an effort to chase the artery. Press down a bit more firmly with the distal end of the probe and you'll be able to take the ICA farther distal with a reasonable image. Finally, scan back down the ICA and CCA to the low neck again. Remember to glide back to a more anterior approach as you go proximal; that way you avoid the __________ muscle and get farter proximal.
Definition
CCA, orentation, feet, right, distally, bifurcation, walls, clear, anterior, proximal, CCA, lateral, anterior, bifurcation, perpendicular, sternocleidomastoid
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