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DMS 120 & 122- PHYSICS & HEMODYNAMICS MIDTERM > HEMODYNAMICS MIDTERM > Flashcards

HEMODYNAMICS MIDTERM Flashcards

1
Q

The posterior cerebral artery wraps around the…

A

cerebral peduncle

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2
Q

Intracranial arterial velocities decrease with…

A

increasing age

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3
Q

When performing a transcranial color doppler (TCD) imaging examination, the best results are obtained using a _____ transducer

A

2 MHz

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4
Q

Identification of normal cranial arteries is not based on _____

A

blood flow velocity

  • based on flow direction & the anatomy
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5
Q

A low hematocrit (less than30%) is associated with _____

A

increased intracranial arterial velocities

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6
Q

The anterior cerebral artery (ACA) is normally evaluated from the _____

A

transtemporal approach

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7
Q

Poor temporal window, patient movement, anatomic variations are limitations of a _____

A

TCD examination

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8
Q

Most users report _____ velocities during TCD examinations

A

Mean

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9
Q

The right and left coronary arteries arise from the _____

A

Ascending Aorta

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10
Q

Recess of the oblique sinus landmark is used to separate pericardial fluid from…

A

pleural euffusion

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11
Q

Most coronary venous drainage is into the ____

A

Coronary Sinus

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12
Q

The right and left coronary arteries arise from the _____

A

Ascending Aorta

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13
Q

The apex of the heart is formed by the ____

A

Left ventricle

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14
Q

Defects in the valves may cause turbulence or regurgitation on auscultation, which is called…

A

Murmur

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15
Q

The most posterior chamber to the left of the sternum is the ____

A

Left Atrium

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16
Q

Sinoatrial note initiates the normal ____

A

cardiac impulse

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17
Q

The base of the heart is formed by the _____

A

Left atrium

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18
Q

The mitral valve separates ____ and _____

A

Left Atrium; Left Ventricle

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19
Q

The right border of the heart is formed by the ____

A

Right Atrium

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20
Q

Transient partial or complete loss of vision is known as ______

A

Amaurosis Fugax

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21
Q

Pulsed wave doppler transducer is used for _____ imaging examinations

22
Q

During color doppler transcranial imaging, the middle cerebral artery (MCA)) runs parallel to the ______

A

Sphenoid Wing

23
Q

Transient partial or complete loss of vision is known as _____

A

Amaurosis Fugax

24
Q

The carotid body assists in regulating:

A
  • heart rate
  • blood pressure
  • respiration
25
Placement of the doppler sample volume should be pallet to ______
Vessel walls
26
Normal vertebral arteries are:
asymmetrical
27
Petrous portion of the ICA is evaluated during ____
Carodit duplex imaging examinations
28
End-diastolic velocity greater than _____ should be used to classify a greater than 80% diameter reduction of the origin of the ICA
155 cm/sec
29
An ultrasound finding of the doppler signal from an external carotid artery (ECA) is ______ waveforms
high-resistance
30
The doppler sample volume should be kept ____(small or big?) during a carotid duplex imaging examination.
small
31
Approximately _______ strokes occur each year in the US
700,000
32
An ultrasound finding of the doppler signal from an ECA is ______ waveforms.
high-resistance
33
______ branches of the ECA is the most commonly visualized
Superior thyroid
34
A different of greater than ______ pressure between arms suggests diastase of the subclavian artery
20 mm
35
Duration less than ____ hours phrases describe a TIA (transischemic attack)
24
36
the innominate artery divides into the RXA and ______
Right subclavian artery
37
The superior vena cava (SVC) enters the right atrium _____
medially
38
The middle cerebral artery is located at the depth of ___ to ____ millimeters
30; 67
39
The mitral valve separates:
left atrium and left ventricle
40
The posterior cerebral artery wraps around the _____
cerebral peduncle
41
The two A1 segments of ACA are joined by ________
anterior communicating artery
42
Zero degree angle is assumed when performing ____ imaging examinations
TCD
43
A high-resistance doppler signal is normal characteristic of ______ artery evaluation during a TCD exam.
Ophthalmic
44
The innominate artery divides into the ___________ and ___________ arteries.
Right common carotid; right subclavian
45
A characteristic of a subclavian steal is:
Reversal of blood flow in the vertebral artery
46
Fibromuscular dysplasia typically affects _____ of the internal carotid artery
Midportion
47
A warning sign of stroke is _______.
Temporary blindness in one eye
48
Noise caused by tissue vibration produced by turbulent flow is:
Bruit
49
Infundibulum.
The outflow tract of the right ventricle
50
The tricuspid valve opens when the:
Right ventricle pressure drops below the right atrial pressure.

DMS 120 & 122- PHYSICS & HEMODYNAMICS MIDTERM (2 decks)

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