CH.1 Before,during and after examination Flashcards

(46 cards)

1
Q

OSHA is designed to

A

protect healthcare workers

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2
Q

Documentation Before exam

A

Ultrasound request form
-review form and ICD-10-CM
-Clinical history of pt-peruse pt medical chart inquire pt clinical symptoms.

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3
Q

Indirect means of transmission

A

Touching contaminated sources and transferring to mouth, nose and eyes

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4
Q

HBV (Hepatitis B) can survive on surfaces at room temp for a____

A

week

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5
Q

Before assessment Most important items pt chart for sonographer to review are

A

Assessment notes, lab test results and reports from other imaging modalities (ex CT scans)

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6
Q

Ultrasounds examinations should begin with a ___

A

longitudinal and axial survey of area of interest and adjacent structures

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7
Q

Body structures are accurately identified on ultrasound by their

A

Location and landmarks NOT sonographic appearance .

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8
Q

Acoustic enhancement

A

increased echo amplitude or posterior through transmission
bright posterior through transmission

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9
Q

ALARA (As low as reasonably possible)

A

Always consider when scanning.Thermal and mechanical index.Top right side of display screen)

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10
Q

Artifact

A

Unassociated with object being imaged.
EX.shadowing

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11
Q

Ascites

A

Accumulation of fluid anywhere in abdominopelvic cavity.

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12
Q

Calculi (stones)

A

mineral salts that may accompany some disease processes

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13
Q

Complex mass

A

abnormal mass, composed of BOTH tissue and fluid

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14
Q

Contralateral

A

situated or affecting opposite side
Ex.Ovaries are contralateral

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15
Q

Cystic

A

Fluid collection in body that does NOT meat the criteria to be considered a true cyst.
Ex.Ascites said to be cystic in nature

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16
Q

Diffuse disease

A

infiltrative disease throughout organ,disurpts normal appearance of organ parenchyma.

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17
Q

Doppler effect

A

change in observed sound frequency caused by relative motion between source of the sound and observer
Used to detect blood flow through vessels.

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18
Q

echogenic

A

capable of producing echoes
Ex.Body structures

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19
Q

Echopenic

A

few echoes.Ex bile filled gallbladder

20
Q

focal/multifocal change

A

disease process confined to isolated areas of an organ

21
Q

focal zone

A

point where sound beam is narrowest and resolution is at its best

22
Q

Hyperechoic

A

brighter than surrounded areas
ex.pancreas compared to liver

23
Q

Hypoechoic

A

not as bright as surrounded areas
ex. kidney hypoechoic compared to liver

24
Q

interface

A

boundary between 2 materials or structures

EX–use bright appearance of dat interfaces to differentiate body structures from each other

25
Intraperitoneal
enclosed in sac formed by parietal peritoneum EX.Liver,gallbladder,spleen,stomach,majority of intestines and ovaries
26
Ipsilateral
situated on or affecting same side ex.spleen and kidney
27
Isogenic/isoechoic
equal in echogenicity
28
Localized disease
circumscribed mass or multiple masses. solid, cystic or complex
29
mesentery
double fold of peritoneum connects intraperitoneal organs to abdominal cavity
30
Necrotic
degeneration or death
31
neoplasm
new, abnormal growth of existing tissues, either benign or malignant.
32
orthogonal
at right angles
33
retroperitoneum
behind or posterior to the peritoneum Pancreas,IVC,abdominal aorta, uterus,colon,adrenal glands,urinary system
34
Reverberation
structure with acoustic impedance different from adjacent structure, which causes huge amount of reflection back to transducer. EX.image of rib is repeated
35
septations
-thin, membranous inclusions within a mass. -single or multiple separations may be visualized in cystic or complex masses.
36
solid mass
abnormal mass composed of JUST tissue.
37
TGC(time gain compensation)
controls amplification of received echoes
38
True cyst (simple cyst)
abnormal mass composed of fluid -to qualify as true cyst it must: (1) anechoic,(2) defined, thin,smooth walls,(3) exhibits posteriorly through transmission
39
Placenta
echo texture changes throughout pregnancy
40
Muscle
hypoechoeic or less echogenic relative to organs/structures adjacent to it
41
Tissue
homogenous, appear very bright compared with adjacent structures
42
Deep breathing causes everything in diaphragm and everything below it to
move down
43
When are Pathology images are documented?
AFTER the standard protocol images.include high and low gain images and size of abnormalities
43
Deep exhalation
everything moves upward
44
After examination
1.Complete exam worksheet -pt medical history -clinical symptoms -lab results -ultrasound findings 2.Include any reports from other imaging tests or procedures 3.written technical observation
45
Abnormal findings should include
origin or location number size composition (echo pattern)