Chapter 8 Flashcards

Basic Principles & Knobology (30 cards)

1
Q

What two terms describe point of attachment?

A

Proximal and distal

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2
Q

What term means “located on the opposite side of the body”?

A

Contralateral

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3
Q

What term means located on the same side of the body”?

A

Ipsilateral

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4
Q

Patient position: right lateral decubitus (RLD)

A

Lying on the right side

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5
Q

Patient position: left lateral decubitus (LLD)

A

Lying on the left side

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6
Q

Patient position: supine

A

Lying on the back

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7
Q

Patient position: prone

A

Lying face down

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8
Q

Patient position: right posterior oblique (RPO)

A

Lying semi-supine, left side elevated

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9
Q

Patient position: left posterior oblique (LPO)

A

Lying semi-supine, right side elevated

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10
Q

Patient position: left anterior oblique (LAO)

A

Lying semi-prone, right side elevated

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11
Q

Patient position: right anterior oblique (RAO)

A

Lying semi-prone, left side elevated

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12
Q

Patient position: trendelenburg

A

Supine, feet raised higher than head (15-30 degrees)

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13
Q

Patient position: reverse trendelenburg

A

Supine, head raised higher than feet (15-30 degrees)

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14
Q

Patient position: fowler

A

Supine, head of the bed raised and knees elevated (30-90 degrees)

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15
Q

What is a transducer?

A

AKA Probe
-instrument used to obtain an image of the human body using ultrasound
-piezoelectric: converts energy from one form to another

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16
Q

Frequency ranges:

A

-low frequency=more penetration
-high frequency=better resolution

17
Q

Linear Sequenced Array Transducer

A

-used for small parts exams
-rectangle image: image is never wider than transducer
-limited amount of depth
-high frequency, high resolution

18
Q

Curvilinear Array Transducer

A

-used for abdomen, pelvic and OB exams
-images 20-30 cm deep in the body
-blunted sector shape
-lower frequency, better penetration

19
Q

Linear Phased Array Transducer

A

-used in cardiac echo or abdomen (renal arteries)
-fan/sector shaped
-wide field of view at the bottom, narrow at the top

20
Q

Transducer notch

A

-notch faces toward head for sagittal view
-notch faces to the patient’s right side for transverse view

21
Q

Sagittal view

A

-left/right
-measures length and height

22
Q

Transverse view

A

-top/bottom
-measures width and height

23
Q

Coronal view

A

-front/back
-measures length and width

24
Q

What is knobology?

A

Study of knobs or the functionality of controls

25
Which control allows for adjustment of brightness of the entire image?
Gain
26
What happens when you decrease the frequency?
Better penetration
27
What control would you use to decrease the brightness in just the near field?
TGC (top 4 knobs)
28
What control do you use to measure fetal heart rate?
M-mode
29
What control increases the amount of energy put into the body?
Power/output power
30
Difference between calc and caliper?
Calc: go into the report page Caliper: measure anything, 2D or ellipse