SPI version B pt 2

67問 • 1年前

問題一覧

Which of the following describes a normal result for uniformity testing of the ultrasound system

B) TGC set to produce an image with equal echo amplitude across the screen and then when the TGC function is turned off the echoes in the far field are reduced in amplitude

When transporting a patient in a wheelchair with an IV bag

A) you should always transport the IV bag above the level of the patient’s heart

When a patient stands up, what is the hydrostatic pressure at the ankles?

C) 100 mmHg

Which of the following console controls can be used to increase the number of scan lines used in a color image

B) persistence

As frequency increases the axial resolution will

A) improve

Which of the following imaging techniques relies on Young’s modulus for the color displayed

You are evaluating an obese patient with a known abdominal aortic aneurysm while using color Doppler to assess flow within the aortic aneurysm. Minimal flow is detected in an anechoic lumen. You decrease the color scale increase the color gain but there is no improvement which of the following adjustments will improve the color display of this exam

D) increase the color threshold

When reporting spectral Doppler information the sonographer must

C) record the highest quality and highest velocity signals for the final measurements

Which of the following will increase the risk of aliasing

A) increasing transmit frequency

Blood flow that varies with respiration is described as

C) phasic

What can be done to reduce the spectral broadening on the image?

B) decrease Doppler gain

Increasing the number of bits assigned to a pixel will

A) allow for the display of more shades of gray

Which of the following statements is correct regarding inspecting an endocavity probe for a potential electrical hazard

D) normal use of disinfecting agents can lead to damage of the probe coding which will cause a risk of electrical hazard

Decreasing the width of the color sample to 50% of the original size will have what effect on the frame rate

C) increase by 50%

When the color scale is increased, what other setting automatically increases along with it

D) wall filter

Changing the color flow Doppler velocity scale alters the

B) pulse repetition frequency

The recommended sample size for PW Doppler evaluation of an artery is

C) 1-1.5mm

The CDC recommends the use of ____ for hand hygiene, except when the hands are visibly soiled

B) alcohol based hand rub

Which of the following describes the correct way to measure the acceleration time on a Doppler waveform

B) place a caliper at the onset of the systolic upstroke and at the systolic peak

The tissue phantom pins in the area listed as #4 are used to evaluate which of the following parameters

D) horizontal calibration

Changing the color flow doppler velocity scale alters the

C) pulse repetition frequency

which law of physics describes the refraction of sound at the boundary between two media with different propagation speeds

D) Snell’s Law

which of the following correctly describes dynamic receive focusing

B) allows focusing at multiple depths on the image

if the frequency of the beam increases the propagation speed in the media will

C) not change

which of the following exams would require the storage of a 2-3 second digital clip of the real time image

D) evaluation of the wall motion of the left ventricle

Which image demonstrates dirty posterior shadowing?

which of the following image controls can be adjusted to produce a smoother color doppler image

D) persistence

when you activate harmonic imaging and add a focal zone to the field of view which type of resolution will degrade with these changes

A) temporal

List the parts of the beam former in the order they function to produce and receive sound waves

B) pulser, pulse delays, transmit/receive switch, amplifier, analog-to-digital converter, echo delays, summer

____ is the percentage of time the transducer is transmitting sound waves

C) Duty Factor

When preparing the sterile tray for an invasive procedure the cover on the tray should be opened

D) by pulling the far corner of the wrapper toward you

which of the following will increase the risk of aliasing

D) increasing transmit frequency

what can be done to reduce the color Doppler artifact demonstrated on the image

A) reduce color gain

what console control should be adjusted to improve the image

D) more than one of the above

What type of transducer produced in the image

D) curved phased array

which of the following machine settings should be adjusted first to improve the color doppler image

D) increase color Doppler gain

which of the following describes an important reason to verify the ultrasound examination that is ordered is the exam that should really be performed

B) when the suspected diagnosis is not able to be evaluated by the exam that is ordered

which of the following variables has the most significant effect on propagation speed

A) stiffness

what doppler artifact results is unwanted reflected information from locations other than the desired sample location

C) range ambiguity

which of the following describes the primary advantage of a 1.5 D array over a 1 D array

D) the 1.5 array allows for variable elevation focus while 1 D array has a fixed elevation focus

Increasing the sector size increases

A) the number of pulses per image

A disadvantage of increasing edge enhancement is

A) amplifies echoes related to noise and speckle

Increasing transmit output power will increase the risk of bioeffects and

D) the signal to noise ratio

____ removes low amplitude signals and noise from the image

A) increasing rejection

Which of the following will not change with an increase in gain setting?

D) signal-to-noise ratio

Diffuse reflection

B) occurs when the beam strikes a large rough surface

Which of the following statements is true regarding pulse inversion images

C) reduces frame rate compared to standard 2D imaging

___ occurs posterior to highly attenuating structures

A) shadowing

Which of the following describes the best way to improve the recorded image of the liver

B) decrease the imaging depth by 5 cm

____ can be used to reduced image noise and clutter on the 2D image

C) spatial compounding

Which of the following is a function of the signal processor

C) filtering and compression

As the cross-sectional area of a blood vessel increases what happens to the velocity of the blood flow

C) decreases

Anemia will ___ blood flow velocities detected on Doppler evaluation

B) increase

What technique is used to reduce lobe artifact?

A) subdicing

Which of the following artifacts cause the appearance of false echoes beside the actual structure on the image

B) lobe artifacts and refraction artifacts

Axial resolution is primarily dependent upon

A) pulse duration

A 5 MHz transducer has a PRF of 6 kHz and is being used to produce a wave with a 0.6 mm wave length and a 3 mm spatial pulse length what is the axial resolution of the system?

D) 1.5 mm

Blood flows from a large vessel into smaller collateral vessel when

C) resistance is lower in the smaller vessel than the large vessel

If the amplitude of a wave is decreased by one half the intensity ___

B) decreases to 1/4 original intensity

Which of the following will improve lateral resolution at all depths on the image

D) dynamic receive focusing

The unit used for attenuation coefficient is

B) dB/cm

____ increases the strength of all reflected signals regardless of reflector depth

D) overall gain

Which of the following describes the type of focusing used in an annular phased array

B) focusing at multiple levels across all depths of the image

A carotid Doppler exam was performed last year using a 10 MHz transducer and this year the exam was performed with a 5 MHz transducer, assuming no change in the level stenosis in the arteries and the same Doppler angle is used how will the change in transducer frequency affect the velocity information on today’s exam

C) the transducer frequency does not affect the calculated flow velocity

Which type of transducer will be used to evaluate a palpable lump in the neck

C) 12 MHz linear phased array

Which of the following is the best way to improve the lateral resolution of the image?

A) turn off the trapezoid field of view

Which of the following correctly describes the duty factor of an ultrasound system

D) duty factor refers to the amount of time soundwaves are being produced

SPI version A

Karla Alvarez · 100問 · 1年前

SPI version A

100問 • 1年前

Karla Alvarez

SPI version A pt 2

Karla Alvarez · 66問 · 1年前

SPI version A pt 2

66問 • 1年前

Karla Alvarez

SPI version B

Karla Alvarez · 100問 · 1年前

SPI version B

100問 • 1年前

Karla Alvarez

SPI version C

Karla Alvarez · 100問 · 1年前

SPI version C

100問 • 1年前

Karla Alvarez

SPI version C pt 2

Karla Alvarez · 61問 · 1年前

SPI version C pt 2

61問 • 1年前

Karla Alvarez

SPI version D

Karla Alvarez · 100問 · 1年前

SPI version D

100問 • 1年前

Karla Alvarez

SPI version D pt 2

Karla Alvarez · 61問 · 1年前

SPI version D pt 2

61問 • 1年前

Karla Alvarez

ARDMS version A & B

Karla Alvarez · 77問 · 1年前

ARDMS version A & B

77問 • 1年前

Karla Alvarez

問題一覧

Which of the following describes a normal result for uniformity testing of the ultrasound system

B) TGC set to produce an image with equal echo amplitude across the screen and then when the TGC function is turned off the echoes in the far field are reduced in amplitude

When transporting a patient in a wheelchair with an IV bag

A) you should always transport the IV bag above the level of the patient’s heart

When a patient stands up, what is the hydrostatic pressure at the ankles?

C) 100 mmHg

Which of the following console controls can be used to increase the number of scan lines used in a color image

B) persistence

As frequency increases the axial resolution will

A) improve

Which of the following imaging techniques relies on Young’s modulus for the color displayed

D) increase the color threshold

When reporting spectral Doppler information the sonographer must

C) record the highest quality and highest velocity signals for the final measurements

Which of the following will increase the risk of aliasing

A) increasing transmit frequency

Blood flow that varies with respiration is described as

C) phasic

What can be done to reduce the spectral broadening on the image?

B) decrease Doppler gain

Increasing the number of bits assigned to a pixel will

A) allow for the display of more shades of gray

Which of the following statements is correct regarding inspecting an endocavity probe for a potential electrical hazard

D) normal use of disinfecting agents can lead to damage of the probe coding which will cause a risk of electrical hazard

Decreasing the width of the color sample to 50% of the original size will have what effect on the frame rate

C) increase by 50%

When the color scale is increased, what other setting automatically increases along with it

D) wall filter

Changing the color flow Doppler velocity scale alters the

B) pulse repetition frequency

The recommended sample size for PW Doppler evaluation of an artery is

C) 1-1.5mm

The CDC recommends the use of ____ for hand hygiene, except when the hands are visibly soiled

B) alcohol based hand rub

Which of the following describes the correct way to measure the acceleration time on a Doppler waveform

B) place a caliper at the onset of the systolic upstroke and at the systolic peak

The tissue phantom pins in the area listed as #4 are used to evaluate which of the following parameters

D) horizontal calibration

Changing the color flow doppler velocity scale alters the

C) pulse repetition frequency

which law of physics describes the refraction of sound at the boundary between two media with different propagation speeds

D) Snell’s Law

which of the following correctly describes dynamic receive focusing

B) allows focusing at multiple depths on the image

if the frequency of the beam increases the propagation speed in the media will

C) not change

which of the following exams would require the storage of a 2-3 second digital clip of the real time image

D) evaluation of the wall motion of the left ventricle

Which image demonstrates dirty posterior shadowing?

which of the following image controls can be adjusted to produce a smoother color doppler image

D) persistence

when you activate harmonic imaging and add a focal zone to the field of view which type of resolution will degrade with these changes

A) temporal

List the parts of the beam former in the order they function to produce and receive sound waves

B) pulser, pulse delays, transmit/receive switch, amplifier, analog-to-digital converter, echo delays, summer

____ is the percentage of time the transducer is transmitting sound waves

C) Duty Factor

When preparing the sterile tray for an invasive procedure the cover on the tray should be opened

D) by pulling the far corner of the wrapper toward you

which of the following will increase the risk of aliasing

D) increasing transmit frequency

what can be done to reduce the color Doppler artifact demonstrated on the image

A) reduce color gain

what console control should be adjusted to improve the image

D) more than one of the above

What type of transducer produced in the image

D) curved phased array

which of the following machine settings should be adjusted first to improve the color doppler image

D) increase color Doppler gain

which of the following describes an important reason to verify the ultrasound examination that is ordered is the exam that should really be performed

B) when the suspected diagnosis is not able to be evaluated by the exam that is ordered

which of the following variables has the most significant effect on propagation speed

A) stiffness

what doppler artifact results is unwanted reflected information from locations other than the desired sample location

C) range ambiguity

which of the following describes the primary advantage of a 1.5 D array over a 1 D array

D) the 1.5 array allows for variable elevation focus while 1 D array has a fixed elevation focus

Increasing the sector size increases

A) the number of pulses per image

A disadvantage of increasing edge enhancement is

A) amplifies echoes related to noise and speckle

Increasing transmit output power will increase the risk of bioeffects and

D) the signal to noise ratio

____ removes low amplitude signals and noise from the image

A) increasing rejection

Which of the following will not change with an increase in gain setting?

D) signal-to-noise ratio

Diffuse reflection

B) occurs when the beam strikes a large rough surface

Which of the following statements is true regarding pulse inversion images

C) reduces frame rate compared to standard 2D imaging

___ occurs posterior to highly attenuating structures

A) shadowing

Which of the following describes the best way to improve the recorded image of the liver

B) decrease the imaging depth by 5 cm

____ can be used to reduced image noise and clutter on the 2D image

C) spatial compounding

Which of the following is a function of the signal processor

C) filtering and compression

As the cross-sectional area of a blood vessel increases what happens to the velocity of the blood flow

C) decreases

Anemia will ___ blood flow velocities detected on Doppler evaluation

B) increase

What technique is used to reduce lobe artifact?

A) subdicing

Which of the following artifacts cause the appearance of false echoes beside the actual structure on the image

B) lobe artifacts and refraction artifacts

Axial resolution is primarily dependent upon

A) pulse duration

A 5 MHz transducer has a PRF of 6 kHz and is being used to produce a wave with a 0.6 mm wave length and a 3 mm spatial pulse length what is the axial resolution of the system?

D) 1.5 mm

Blood flows from a large vessel into smaller collateral vessel when

C) resistance is lower in the smaller vessel than the large vessel

If the amplitude of a wave is decreased by one half the intensity ___

B) decreases to 1/4 original intensity

Which of the following will improve lateral resolution at all depths on the image

D) dynamic receive focusing

The unit used for attenuation coefficient is

B) dB/cm

____ increases the strength of all reflected signals regardless of reflector depth

D) overall gain

Which of the following describes the type of focusing used in an annular phased array

B) focusing at multiple levels across all depths of the image

C) the transducer frequency does not affect the calculated flow velocity

Which type of transducer will be used to evaluate a palpable lump in the neck

C) 12 MHz linear phased array

Which of the following is the best way to improve the lateral resolution of the image?

A) turn off the trapezoid field of view

Which of the following correctly describes the duty factor of an ultrasound system

D) duty factor refers to the amount of time soundwaves are being produced