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CCP S2 > Ultrasound > Flashcards

Ultrasound Flashcards

1
Q

Gain

A

“turning up the volume” making things lighter or darker

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2
Q

depth

A

What depth is displayed, not depth of penetration

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3
Q

where should the probe maker be

A

towards pt’s head or right side

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4
Q

anechoic

A

“without echo”, no image only black

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5
Q

hypoechoic

A

darker

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6
Q

hyperechoic

A

bright

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7
Q

Isoechoic

A

appears similar

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8
Q

high frequency

A

high resolution shallow depth

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9
Q

low frequency

A

low resolution deeper depth

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10
Q

B-mode

A

“brightness mode”, 2D grey scale

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11
Q

M-mode

A

“motion over time” image slice displayed on Y axis then over time on x

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12
Q

what is mirror image artifact

A

when the probe wave hits an object and presents the mirrored object behind the object

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13
Q

a-line

A

artifact reflection of the plural.

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14
Q

b-line

A

edema

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15
Q

most sensitive view in supine pt

A

80-85 % senitive for FF. RUQ Morrison’s pouch is the most dependant area in the intraperitoneum

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16
Q

how much fluid does it take to result in a + FAST

A

200-500mls depending on position and how long

17
Q

what is spine sign

A

reflection of spine in lung cavity + for a hemothorax (air should scatter the image of the vertebrae, when there is blood or fluid or consilidation the vertebrae will reflect off of them and appear on the bottom of the image)

18
Q

Contraindication for ONSD

A

Globe rupture,

screw with results: bone flap, “bolt”, hydrocephalus, SAH

19
Q

Optic nerve sheath > 6mm

A

Highly SPECIFIC for elevated ICP (ICP>20)

20
Q

Does unilateral pupil dilation affect ONDS

A

No

21
Q

Why do you need to confirm signs of brain herniation prior to administering hypertonic saline

A

The brain can become “desensitized” to hypernatremia, therefore repeat doses may be ineffective

22
Q

what will you see on the RUQ

A

R kidney and liver “morrison’s pouch”. ensure to extend inferiorly to see caudle tip of the liver as that is where FF will collect first

23
Q

what will you see in the LUQ

A

spleen, L kidney (stuff that gets in your way bowel and stomach)

24
Q

where will FF initally collect in LUQ

A

supasplenic or above the spleen

25
Q

where is the pouch of douglas

A

between the uterus and rectum

26
Q

what does the subcostal view determine

A

pericardial effusion

cardiac activity

27
Q

how do you differentiate a pericardial fat pad from pericardial effusion

A

look anteriorly. fluid collection should be grater there, therefore if absent = fat pad

CCP S2 (10 decks)

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