MIDTERM Flashcards

(116 cards)

1
Q

which of the following represents potential energy?

the “snap” of the mouse trap

the road runner hanging off the cliff, but not yet falling

the road runner falling off the cliff

A

the road runner hanging off the cliff, but not yet falling

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2
Q

Now try to relate some of this energy talk to blood flow throughout the body. Predict what impact gravitational energy might have on blood flow within the body.

Gravitational energy might impact blood flow because when the patient is standing or lying down the gravitational forces on the blood within the blood vessels will be different.

If a patient is jumping off a cliff, the pressures in the walls of his vessels might result in atherosclerosis

A

Gravitational energy might impact blood flow because when the patient is standing or lying down the gravitational forces on the blood within the blood vessels will be different.

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2
Q

which of the following represents gravitational energy?

the “snap” of the mouse trap

the road runner hanging off the cliff, but not yet falling

the road runner falling off the cliff

A

the road runner falling off the cliff

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3
Q

which of the following represents kinetic energy?

the spring being compressed

the spring expanding forward

A

the spring expanding forward

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4
Q

Which of the following characteristics of blood do diabetics, smokers, hypertensives, post-menopausal women, and most middle age men, all have in common?

elevated cholesterol
missing clotting factor
low hematocrit
high viscosity

A

high viscosity

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5
Q

What is the stated difference between blood of men and the blood of pre-menopausal women?

men have thinner blood than women

pre-menopausal women have a lower blood viscosity than men

post-menopausal women have a lower blood viscosity than men

men have higher blood viscosity than post-menopausal women

A

pre-menopausal women have a lower blood viscosity than men

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6
Q

What is the stated difference between blood of diabetics and non-diabetics?

diabetes results in higher blood viscosity

diabetes results in lower blood viscosity

not having diabetes raises your risk factors for heart disease

having diabetes lowers your risk of having heart disease

A

diabetes results in higher blood viscosity

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7
Q

What is the stated difference between blood of hypertensive individuals and those with normal blood pressure?

The individual with normal blood pressure will have higher levels of blood viscosity and be at lower risk for cardiovascular disease.

The individual with normal blood pressure will have lower levels of blood viscosity and be at higher risk for cardiovascular disease.

The individual that is hypertensive will have lower levels of blood viscosity and a higher risk for cardiovascular disease.

The individual that is hypertensive will have higher levels of blood viscosity and a higher risk for cardiovascular disease.

A

The individual that is hypertensive will have higher levels of blood viscosity and a higher risk for cardiovascular disease.

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8
Q

How does the video describe the impact of smoking on the patient’s blood and cardiovascular disease?

Smokers have thin blood and are at greater risk for CVS disease.

Smokers have thicker blood and are at greater risk for CVS disease.

Non-smokers have thinner blood and are at greater risk for CVS disease.

Non-smokers have thicker blood and are at lower risk for CVS disease.

A

Smokers have thicker blood and are at greater risk for CVS disease.

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9
Q

Predict why higher viscosity of blood might result in increased risk for cardiovascular disease in all of these situations?

The higher the blood viscosity, the slower it moves, the more likely it is to cause hemodynamic disturbances that affect the vessel walls, result in plaque formation, vessel wall hardening, etc.

The higher the blood viscosity, the thinner the blood so it moves faster, resulting in more turbulence that weakens blood vessel walls.

The higher the blood viscosity, the thinner the blood so it cannot clot and this affects the flow of nutrients to the cells which weakens the vessel walls.

The higher the blood viscosity, the thicker the blood so the blood cells do not fit through the small openings of the aorta and the heart chambers and valves.

A

The higher the blood viscosity, the slower it moves, the more likely it is to cause hemodynamic disturbances that affect the vessel walls, result in plaque formation, vessel wall hardening, etc.

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10
Q

Which of the following definitions, best describes the term “hemodynamics”?

study of the anatomy of the heart and blood vessels

study of blood vessels and how they interact at the cellular level

study of blood components

study of blood moving through the circulatory system

A

study of blood moving through the circulatory system

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11
Q

All of the following would be considered part of the Four Pumps that assist blood flow throughout the body EXCEPT:
heart pump
vertebral pump
aortic pump
calf muscle pump
respiratory pump

A

vertebral pump

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12
Q

When discussing or measuring “flow”, AKA “volume flow rate”, one would most likely be measuring what and using which units of measure?

discussing the number of blood cells passing through a vessel wall and using a concrete number such as 320

discussing the amount of blood flow and using a volume unit such as liter

discussing the amount of blood flow over a specified period of time and using a volume unit such as liter divided by a unit of time such as minute

discussing the speed of blood flow over an hour and using an area unit such as centimeter squared and a time unit such as hour

A

discussing the amount of blood flow over a specified period of time and using a volume unit such as liter divided by a unit of time such as minute

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13
Q

If a sonographer were to measure flow velocity, he would most likely record the flow velocity and report it to the physician in which of the following units of measure?

miles per hour
millimeters per microsecond
meters per hour
centimeters per second

A

centimeters per second

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14
Q

Of the following forms of flow, which is most likely associated with the arterial system?

pulsatile
phasic
steady

A

pulsatile

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15
Q

Of the following forms of flow, which is most likely associated with the venous system?
pulsatile
phasic
steady

A

phasic

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16
Q

In order for fluid to flow from one place to another, there must be a…
difference in temperatures (temperature gradient)

difference in velocities (velocity gradient)

difference in pressures (pressure gradient)

difference in molecular density (density gradient)

A

difference in pressures (pressure gradient)

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17
Q

When the left ventricle contracts, blood leaves the heart with a particular force or energy, but it immediately begins to lose steam (energy). What characteristic of blood contributes to this loss in energy?

viscosity
plasma
platelets
White Blood Cells

A

viscosity

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18
Q

Which of the following results in energy loss as blood moves through a vessel?
pressure
blood type
friction
content of the blood cells mitochondria

A

friction

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19
Q

Using your critical thinking skills, if inertial energy loss occurs when there is a change in the motion of blood (Newton’s Law of Motion), then in which of the following situations would it be least likely for an inertial energy loss to occur?

pulsatile blood flow
phasic blood flow
turbulent blood flow
steady blood flow

A

steady blood flow

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20
Q

You learned that a pressure gradient (or change/difference in pressure) is needed for blood to flow. For example, blood moves from areas of high pressure to areas of low pressure, just as humans avoid areas of high pressure in their lives and move to areas of comfort or low pressure.

If the concept is represented by the following:

Pressure Gradient = flow x resistance, what happens to the pressure gradient if resistance increases?

The pressure gradient or difference in pressure also increases.

The pressure gradient or difference in pressure decreases.

The pressure gradient or difference in pressure does not change at all.

A

The pressure gradient or difference in pressure also increases.

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21
Q

Voltage = current x resistance is a formula that described by…

A

Ohm’s Law

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22
Q

Which of the following best describes the role of the heart pump?
starts the flow of blood to the legs
starts the flow of blood to the heart
starts the flow of blood to the brain
starts the flow of blood to the body and lungs

A

starts the flow of blood to the body and lungs

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23
Q

All of the following are required for blood to flow out of the heart EXCEPT:

chemical change in the blood

electrical conduction

mechanical contraction of the heart muscle

pressure gradient between one side of a heart valve and the other

A

chemical change in the blood

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24
Pertaining to the electrical conduction system, which component is known as the pacemaker of the heart? Bundle of HIS Purkinjie Fibers Internodal Tract Sino-atrial Node
Sino-atrial Node
25
The muscle layer of the heart responsible for effective pumping is known as the... endocardium epicardium myocardium pericardium
myocardium
26
All of the following are functions of the heart and circulation EXCEPT: provide blood and nutrients regulate fluids in the body supply cells with oxygen remove carbon dioxide and wastes
regulate fluids in the body
27
Which of the following valves are open in diastole?
mitral valve tricuspid valve
28
Which valve separates the left ventricle from the aorta?
aortic valve
29
The heart needs its own blood supply but does not get it from the blood going through the chambers. Which of the following supplies the heart with blood and oxygen needed to maintain cardiac health?
coronary arteries
30
The test that records the electrical activity of the heart is called
electrocardiogram
31
The valve that separates the right atrium from the right ventricle is the...
tricuspid valve
32
In order for blood to flow from one chamber to the next, there must be a
pressure gradient
33
In order for there to be mechanical contraction of the heart, there must be...
electrical activity
34
Which of the following separates the right ventricle from the left ventricle? ricuspid valve Interatrial septum Mitral valve Interventricular septum
Interventricular septum
35
Which of the following waveforms of the EKG represent ventricular contraction?
QRS COMPLEX
36
when the tricuspid and mitral valves are open, but the aortic and pulmonic are closed, the heart is in which phase of the cardiac cycle?
diastole
37
Which of the following best describes the concept of "pre-load"? relates to what happens to blood after it leaves the heart (arterial outflow) relates to what happens prior to blood entering the heart (venous return)
relates to what happens prior to blood entering the heart (venous return)
38
All of the following are branches directly off the aortic arch EXCEPT: brachiocephalic artery right common carotid artery left common carotid artery left subclavian artery
right common carotid artery
39
Which of the following vessels brings a constant supply of blood and oxygen to the brain? Internal Carotid Arteries External Carotid Arteries Abdominal Aortas
Internal Carotid Arteries
40
Which of the following branches of the extra-cranial carotid arteries can have its branches insonated while scanning the main branch? External Carotid Artery Internal Carotid Artery
External Carotid Artery
41
The vessels that join to create the Basilar Artery which supplies the circle of Willis are called the... Internal Carotid Arteries Common Carotid Arteries External Carotid Arteries Vertebral Arteries Subclavian Arteries
Vertebral Arteries
42
The vertebral arteries branch from the: aortic arch common carotid arteries subclavian arteries ECA ICA
subclavian arteries
43
Which of the following segments of the lower extremity arterial system is considered the inflow? aorto-iliac femoro-popliteal tibio-peroneal
aorto-iliac
44
Which of the following segments of the lower extremity arterial system is considered the run-off? aorto-iliac femoro-popliteal tibio-peroneal
tibio-peroneal
45
If your patient were experiencing pain in the calf muscle, in which of the three segments or systems would you expect to find disease? in-flow segment of the aorto-iliac out-flow segment of the femoro-popliteal run-off segment of the tibioperoneal both the out-flow segment and the run-off segment, although most commonly the out-flow segment
both the out-flow segment and the run-off segment, although most commonly the out-flow segment
46
Of the four pumping mechanisms that cause blood to circulate throughout the body, which of the following has the thick media walls that accepts a bolus of blood that with contractile recoil pushes blood through the vessel? heart pump aortic pump calf muscle pump respiratory pump
aortic pump
47
The descending aorta provides blood to all of the following organs, tissue, cells EXCEPT: abdominal organs pelvic organs upper extremities lower extremities
upper extremities
48
The term "bolus" refers to
a large quantity of something administered all at once, such as blood or nutritional supplement or medication
49
What percentage of blood from the Common Carotid Artery (CCA) branches to the ICA?
80%
50
Which of the following best describes the term "peak systole"? the lowest velocity throughout the cardiac cycle the highest velocity during the ventricular relaxing phase of the cycle the highest velocity during the entire cycle (contracting and relaxing) the lowest velocity during the ventricular contracting phase of the cycle
the highest velocity during the entire cycle (contracting and relaxing)
51
Which of the following statements best describes the term "end-diastole"? the lowest velocity, just prior to the upstroke associated with the next cardiac cycle the highest velocity, just prior to the down stroke associated with the next cardiac cycle the lowest velocity, just prior to the down stroke associated with the next cardiac cycle the highest velocity, just prior to the upstroke associated with the next cardiac cycle
the lowest velocity, just prior to the upstroke associated with the next cardiac cycle
52
Which of the following statements best describes the term "window filling"? a recording of the highest velocities associated with blood flowing through a window a recording of the highest velocities associated with blood flowing through a sample gate a recording of the varied velocities between the highest and the baseline flowing through a window a recording of the varied velocities between the highest and the baseline flowing through the sample gate
a recording of the varied velocities between the highest and the baseline flowing through the sample gate
53
Which of the following statements best describes the term "dicrotic notch"? small downward deflection in the arterial pulse (pressure wave) immediately after the closure of the semi-lunar valves small upward deflection in the arterial pulse (pressure wave) immediately after the closure of the semi-lunar valves small downward deflection in the venous flow pattern after the patient takes a step small downward deflection in the venous flow pattern after the patient takes a step
small downward deflection in the arterial pulse (pressure wave) immediately after the closure of the semi-lunar valves
54
Color Doppler can provide all of the following information about blood flow EXCEPT: absence or presence of flow direction of flow mean velocities of flow smooth or turbulence of flow quantifiable flow velocity
quantifiable flow velocity
55
What combination of ultrasound system adjustments should he/she make to properly visualize the vertebral arteries? increase velocity scale and increase depth decrease velocity scale and increase depth decrease velocity scale and decrease depth increase velocity scale and decrease depth
decrease velocity scale and increase depth
56
While scanning the vertebral arteries, the sonographer notes a significant shadowing effect through the vessel that interrupts the color Doppler information. How should the sonographer report this finding to the physician? normal shadowing from the spinal processes abnormal shadowing from plaque on the anterior wall of the vertebral artery
normal shadowing from the spinal processes
57
The term that best describes the normal waveform pattern associated with the peripheral arterial system of the legs is... uniphasic biphasic triphasic quadriphasic
triphasic
58
How does an increase in peripheral resistance to blood flow affect blood pressure? it also increases it decreases it has no effect
it also increases
59
To which circulatory system does the concept of "peripheral resistance" apply? all blood flow throughout the entire circulatory system only the cerebrovascular system that has high and low resistance flow patterns and brings blood to the vital brain only the peripheral vascular system that brings blood to non-vital organs only the centralized circulatory system that brings blood to the vital organs of the abdomen such as the liver and kidneys
only the peripheral vascular system that brings blood to non-vital organs
60
The patient clenches and releases his fist, the waveform pattern of blood flow in his upper extremity changes. Which of the following statements provides the best explanation for why this occurs? the fist clenching causes blood to flow more freely into the hand so it would be triphasic the fist clenching increases peripheral resistance so the waveform becomes triphasic but when the fist is released blood flow freely and continuously so it becomes a low resistance pattern the fist clenching decreases peripheral resistance so the waveform becomes low rsistance the first clenches has not real effect on peripheral resistance
the fist clenching increases peripheral resistance so the waveform becomes triphasic but when the fist is released blood flow freely and continuously so it becomes a low resistance pattern
61
Which of the following is NOT considered one of the four "pumps" that contributes to circulating blood throughout the body? The Heart The Pulmonic The Aortic The Calf Muscle The Respiratory
The Pulmonic
62
Within what type of vessel would this type of "calf muscle pump" be found? Coronary arteries Coronary veins Inferior Vena Cava Upper extremity artery Lower extremity vein
Lower extremity vein
63
As the calf muscle is contracting, what corresponding action is occurring with the valves? The valves are opening. The valves are closing. The valves are contracting. The valves are relaxing.
The valves are opening.
64
As the calf muscle is relaxing, what corresponding action is occurring with the valves? The valves are opening. The valves are closing. The valves are contracting. The valves are relaxing.
The valves are closing.
65
Predict which of the following options might happen if the patient is sitting for long periods of time. Nothing would be different as this is done automatically, much like breathing. If the patient is sitting, but is moving his feet, then the calf muscle pump would still be working and pumping blood back to the heart, but if not, blood will start to pool in his legs and they might swell. If the patient is sitting, but is not moving his feet, then the valves would become floppy and would not be able to support the back flow when the patient resumes standing. If the patient is sitting, gravity will not allow any blood to flow out of his legs and back to his heart
If the patient is sitting, but is moving his feet, then the calf muscle pump would still be working and pumping blood back to the heart, but if not, blood will start to pool in his legs and they might swell.
66
Predict what might happen if the patient's valves are not able to close completely. Blood will flow backwards all the way back to his heart. Blood will be pumped forward until it is trapped by another muscle. Blood will not be able to be pumped forward at all and it will pool in the legs. Blood will be pumped forward with the calf muscle contraction, but will then flow backward until it is caught by the first working valve
Blood will be pumped forward with the calf muscle contraction, but will then flow backward until it is caught by the first working valve
67
The diaphragm is a: small curved muscle large curved muscle large flat or domed muscle small flat muscle
large flat or domed muscle
68
When the diaphragm moves downward, it flattens, and air is pushed out of the lungs. is pulled out of the trachea. is pushed out of the nose. ! is pulled into the lungs.
is pulled into the lungs.
69
As the diaphragm moves downward, the size of the thoracic cavity is decreased. is increased. remains the same.
is increased.
70
The downward movement of the diaphragm affects the abdominal cavity in that the pressure
increases.
71
As abdominal pressures increase, blood flow returning to the heart through the veins of the lower extremities is impeded by increased pressure. decreased pressure. no pressure change. is not impeded
increased pressure.
72
At what anatomical location on the body will the patient's measured pressure be less than his actual circulatory pressure? the level of the head the level of the heart the level of the waist the level of the knees the level of the ankles
the level of the head
73
When veins are under their normal low pressure, which of the following shapes most represents their normal appearance? hourglass oval round
hourglass
74
With exercise, blood flow increases through the artery to the muscle and therefore there is also an increase in blood volume that must be drained from the muscle by the vein. Which of the following statements best describes the change in a vein when a person exercises? The vein expands to accommodate the increase in blood volume, but by increasing in size, there is little increase in pressure. The vein collapses under the extra pressure from the increasing volume of blood draining from the muscle.
The vein expands to accommodate the increase in blood volume, but by increasing in size, there is little increase in pressure.
75
As veins increase in size to accommodate the increase in blood volume, what happens to resistance to flow? it increases, restricting flow back to the heart it increases, increasing flow back to the heart it decreases, restricting flow back to the heart it decreases, increasing flow back to the heart
it decreases, increasing flow back to the heart
76
Once a vein's cross sectional shape has progressed from hour glass to oval to round, what happens to the transmural pressure? It ruptures the vein and then the pressure decreases. It increases significantly if there is continuing need to increase volume further. It decreases significantly as the need to increase volume increases. There is no change to the transmural pressure as the vein cross sectional shape changes.
It increases significantly if there is continuing need to increase volume further.
77
What is the hydrostatic pressure for someone who is supine (lying on his back)? 0 cm/sec 0 mmHg 140 mmHg 180 mmHg
0 mmHg
78
For a supine individual whose actual circulatory pressure is 120 mmHg, what pressure reading would be obtained if his brachial blood pressure were taken? 0 cm/sec 0 mmHg 120 mmHg 180 mmHg
120 mmHg
79
At what anatomical location on the patient does the measured pressure = the accurate circulatory pressure?
the level of the heart
80
Movement of blood in the lower extremity venous system is influenced mainly by all of the following EXCEPT: respiratory variation aorta pump valves calf muscle pump
aorta pump
81
Which of the following has an artery paired with it? deep vein superficial vein perforating vein capillary
deep vein
82
The purpose of heart valves is to maintain proper... two way flow of the blood. one way flow of the blood. balance.
one way flow of the blood.
83
When the sonographer assesses a valve for competency, one technique that is used is called M-Mode Gray Scale color flow Doppler Spectral Doppler
color flow Doppler
84
A benign tumor of the heart that blocks flow, most commonly into the left ventricle, reducing the cardiac output is called:
myxoma
85
If the the heart is unable to pump sufficient blood to meet the metabolic needs of the body, view the image and predict what the pathology might be.
CHF (congestive heart failure)
86
CHF (congestive heart failure) can be referred to as right sided or left sided heart failure depending on the cause and which side of the heart fails first. Even if all valves are functioning normally, a patient with pulmonary disease is at risk for right sided CHF. TRUE OR FALSE
TRUË
87
The volume of blood in the ventricles prior to ejection, which is dependent on venous return, is called:
preload
88
The resistance the ventricles have to pump against to eject blood into the great vessels is called:
afterload
89
An infection of the inner lining of the heart and heart valves that may cause vegetations or perforations of the valves is known as:
endocarditis
90
Reviewing the image, the left ventricle has a bulge in the apex which could have been caused by a myocardial infarction. The bulge in the apex is known as:
aneurysm
91
A bulge in the left ventricle along with the thinning of necrotic tissue of the infarcted wall and the high pressure in the ventricle during ejection may cause which of the following?
rupture
92
Which type of lipoprotein is responsible for the development of atherosclerosis? low density lipoproteins high density lipoproteins
low density lipoproteins
93
Macrophages that have ingested the oxidized LDL's are called: stem cells fatty streaks foam cells
foam cells
94
Peripheral Arterial Disease affects how many ppl
10 mil
95
reatment of PAD includes all of the following EXCEPT: smoking cessation controlling high blood pressure leg pain treatment controlling diabetes
leg pain treatment
96
The buildup of plaque causes the arteries to harden and narrow. This is known as: stenosis intermittent claudication atherosclerosis ischemia
atherosclerosis
97
he most severe form of PAD includes: ulceration and sores on the legs and feet that heal easily ulceration and sores on the legs and feet that do not heal easily ulceration and sores on the toe ulceration and sores on the arm that do not heal easily
ulceration and sores on the legs and feet that do not heal easily
98
An ABI is calculated by using which of the following: ABI = lowest ankle pressure x highest brachial pressure ABI = highest ankle pressure divided by the highest brachial pressure ABI = highest ankle pressure x the highest toe pressure ABI = highest ankle pressure x the lowest brachial pressure
ABI = highest ankle pressure divided by the highest brachial pressure
99
A normal Ankle Brachial Index is...
1.0
100
An Ankle Brachial Index below .99 shows...
decrease blood flow
101
As the severity of the disease increases, the number related to the Ankle Brachial Index:
decreases
102
When obtaining the ABI, the sonographer should inflate the cuff no more than ___ above the last sound heard. 30 mmHg 100 mmHg
30 mmHg
103
In order to optimize your ABI examination, the sonographer should use which of the following? large sample volume and a 60-degree angle small sample volume and a 60-degree angle small sample volume and a 90-degree angle large sample volume and a 90 degree angle
small sample volume and a 60-degree angle
104
The pressure applied to the skin by the ultrasound transducer must maintain good contact, but can NOT be excessive or it may... change the image direction obliterate the arterial Doppler signal enhance the arterial Doppler signal degrade the image
obliterate the arterial Doppler signal
105
Blood pressure cuffs are placed ... on the forearm and at the ankle bilaterally on the upper arms and at the ankles one on the upper arm and one on the knee on both arms and the painful leg
bilaterally on the upper arms and at the ankles
106
The blood pressure cuff should be slowly deflated, to note the... time at which the audible arterial Doppler will disappear. pressure at which the audible arterial Doppler will disappear. pressure at which the audible arterial Doppler starts. resistances of the audible arterial Doppler.
pressure at which the audible arterial Doppler starts.
107
A low ABI means the blood pressure in the legs is lower than that of the arms, indicating that PAD is... increasing the blood flow to the legs. restricting blood flow to the legs. increasing the blood flow to the arms. restricting blood flow to the arms.
restricting blood flow to the legs.
108
Which of the following is not one of the four categories of PAD? normal claudication pain when walking tissue gain
tissue gain
109
Fatty Plaques can develop a hard fibrous calcific cap that is at risk of ...
rupture
110
Which one of the following is a TRUE statement about the Ankle/Brachial Index? an index greater than 1.3 is normal. the ankle pressure should be equal to or greater than the arm pressure. the arm pressure should be equal to or greater than the ankle pressure. pain in the legs or feet at rest is termed intermittent claudication.
the ankle pressure should be equal to or greater than the arm pressure.
111
A patient with pain in the legs at rest would demonstrate an ABI of less than.... 1.3 1 .97 .4
.4
112
Pain in the legs upon walking that is predictable and is relieved upon rest is termed...
intermittent claudication
113
When taking brachial pressures, a difference of more than 20 mmHg may indicate which of the following? an occlusion of the right common carotid artery an occlusion of the subclavian artery an occlusion of the vertebral artery an occlusion of the brachial artery
an occlusion of the subclavian artery
114
The sample volume box placed on the curve of a tortuous vessel may lead to an... underestimation of the true velocity overestimation of the true velocity makes no difference where the sample volume box is placed
overestimation of the true velocity
115
A narrowing of a vessel due to atherosclerotic plaque is termed a:
stenosis