Module 3 Flashcards

1
Q

Scanning planes

A
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2
Q

Ascites

A

Accumulation of serous fluid anywhere in the abdominopelvic cavity.

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3
Q

Hypoechoic

A

Not as bright as the surrounding tissue

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4
Q

Echoegenic

A

Ability to produce bright white echoes

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5
Q

What is enhancement

A

TGCs

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6
Q

Why do structures shadow

A

Wave is ending or terminating

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7
Q

Focal organ disease

A

Describe changes to the organ in the same manner as diffuse, but including the area of change.

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8
Q

Diffuse organ disease

A

Describe changes to normal organ size, echogenicity, vascularity, boarders, and effect on surrounding structures.

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9
Q

Normal aorta sizes

A

Less than 3

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10
Q

Acoustic shadows

A

“Reduced echo amplitude” or echo “drop off” posterior to a structure that attenuates the sound beam.

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11
Q

Cyst

A

Anechoic, enhancement, smooth walls.

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12
Q

Sludge

A

Gravity dependent low level echos seen in the gallbladder lumen.

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13
Q

Gallstone

A

Echogenic focus within gallbladder lumen, posterior acoustic shadowing, gravity dependent movement seen with the change of patient position.

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14
Q

Ultrasound

A

Above human range of hearing; above 20,000 Hz or 20 KHz

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15
Q

Hyperechoic

A

brighter than surrounding tissue

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16
Q

Homogeneous

A

of the same, uniform composition (the liver)

17
Q

Heterogeneous

A

not uniform; of different composition

18
Q

Isoechoic

A

same echogenicity as the surrounding tissue

19
Q

Interface

A

strong reflectors that delineate the boundary of organs

20
Q

Anechoic

A

wthout internal echoes (black)

21
Q

Texture

A

internal echo pattern of an organ or tissue

22
Q

Cystic

A

Anechoic, well circumscribed, enhancement, fluid filled

23
Q

Septated

A

echogenic lines within a cystic structure

24
Q

Parenchyma

A

type of tissue

25
Q

Cystic structure

A
  • Anechoic
  • Regular boarders; smooth walls
  • Well defined back wall
  • Posterior enhancement
    o an increase in the amplitude of echoes located behind a weakly attenuating
    structure
26
Q

Solid (tumor) structures

A
  • Hypo to hyperechoic
  • Irregular boarders
  • Poorly defined back wall
  • Poor enhancement to acoustic shadowing
27
Q

Complex structures

A

Cystic complex: multiple septations; dependent debris, solid elements
Solid complex: areas of liquification in a solid tumor due to necrosis or hemorrhage

28
Q

Acoustic Windows

A
  • A window allows sonographers to see structures and organs more clearly
  • Largest abdominal window is the liver
  • Largest pelvic window is a full urinary bladder
29
Q

Acoustic Shadow

A
  • Opposite of acoustic window
  • Occurs when an object does not allow sound to penetrate through
  • Bones, stones, and bowel gas cause shadows
  • Can be described as “clean” or “dirty”
30
Q

NPO-6-8 hours before the study:

A

GB, Pancreas, CBD, AO

31
Q

Drink 24 to 32 ounces of water

A

finish drinking 45 minutes to 1 hour before the exam and do
not void-pelvic exam

32
Q

No prep

A

liver, spleen, kidneys, thyroid, testes or scrotum, breast extremities and carotids.

33
Q

Tortuous

A

curvy or twisting