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

HEMODYNAMICS MIDTERM Flashcards

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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

A

TCD

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
Q

Placement of the doppler sample volume should be pallet to ______

A

Vessel walls

26
Q

Normal vertebral arteries are:

A

asymmetrical

27
Q

Petrous portion of the ICA is evaluated during ____

A

Carodit duplex imaging examinations

28
Q

End-diastolic velocity greater than _____ should be used to classify a greater than 80% diameter reduction of the origin of the ICA

A

155 cm/sec

29
Q

An ultrasound finding of the doppler signal from an external carotid artery (ECA) is ______ waveforms

A

high-resistance

30
Q

The doppler sample volume should be kept ____(small or big?) during a carotid duplex imaging examination.

A

small

31
Q

Approximately _______ strokes occur each year in the US

A

700,000

32
Q

An ultrasound finding of the doppler signal from an ECA is ______ waveforms.

A

high-resistance

33
Q

______ branches of the ECA is the most commonly visualized

A

Superior thyroid

34
Q

A different of greater than ______ pressure between arms suggests diastase of the subclavian artery

A

20 mm

35
Q

Duration less than ____ hours phrases describe a TIA (transischemic attack)

A

24

36
Q

the innominate artery divides into the RXA and ______

A

Right subclavian artery

37
Q

The superior vena cava (SVC) enters the right atrium _____

A

medially

38
Q

The middle cerebral artery is located at the depth of ___ to ____ millimeters

A

30; 67

39
Q

The mitral valve separates:

A

left atrium and left ventricle

40
Q

The posterior cerebral artery wraps around the _____

A

cerebral peduncle

41
Q

The two A1 segments of ACA are joined by ________

A

anterior communicating artery

42
Q

Zero degree angle is assumed when performing ____ imaging examinations

A

TCD

43
Q

A high-resistance doppler signal is normal characteristic of ______ artery evaluation during a TCD exam.

A

Ophthalmic

44
Q

The innominate artery divides into the ___________ and ___________ arteries.

A

Right common carotid; right subclavian

45
Q

A characteristic of a subclavian steal is:

A

Reversal of blood flow in the vertebral artery

46
Q

Fibromuscular dysplasia typically affects _____ of the internal carotid artery

A

Midportion

47
Q

A warning sign of stroke is _______.

A

Temporary blindness in one eye

48
Q

Noise caused by tissue vibration produced by turbulent flow is:

A

Bruit

49
Q

Infundibulum.

A

The outflow tract of the right ventricle

50
Q

The tricuspid valve opens when the:

A

Right ventricle pressure drops below the right atrial pressure.

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

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