SPI version A pt 2

66問 • 1年前

問題一覧

when removing a protective gown

C) remove your gloves, untie the strings pull the gown forward from the shoulders using the neck strains grab the inside shoulder them to pull it off the arms and turn it inside out as it’s removed Wash your hands

A 5000 Hz Doppler shift is detected with a 10 MHz transducer. if you switch to a 5 MHz transducer what is the expected Doppler shift

D) 2500 Hz

The centers for disease control recommended signle use sterile ultrasound gel for ultrasound exams performed during which of the following

D) placement of central venous line

After a contrast exam the sonographer should

D) record the amount of contrast use on the exam

what optimization technique creates an image by combining multiple images created at different frequencies

B) frequency compunding

which of the following is resonance artifact only seen with a gas/ tissue interface

B) ring down

what is the method used to estimate the ankle blood pressure in a standing patient

C) add 100mmHg to the systolic blood pressure

which artifact is demonstrated as repetitive reflections separated by equal spacing

B) reverberation

if the beam intensity decreases from 10mW/cm2 to a level of 2.5 mW/cm2 the output power was adjusted by ____

B) -6dB

Read magnification is performed ____ while write magnification is performed ____

B) using static images, during real time scanning

how do you adjust your technique to reduce or eliminate cross talk on a Doppler tracing

C) turn down the Doppler gain

overgaining on an u/s exam can cause ___

A) overestimation of Doppler velocity

which of the following indicates the proper order for putting on personal protective equipment

A) gown, mask, goggles, gloves

which of the following correctly describes the sensitivity of a testing technique

A) the ability of a test to detect disease when it is present

which statement regarding the differences between pulsed and continuous wave Doppler is correct

D) CW Doppler tracing does not display a spectral window with any flow type

flow moving away from the transducer will demonstrate

C) below the baseline

the Doppler shift is 5000Hz the pulse repetition frequency is 9000Hz which of the following is true

D) aliasing will occur

while using a linear phased array to perform a vascular exam, you noticed that the color box will only allow you to place it centrally and steer 20° to the right this issue is most suggestive of

C) PE element damage

____ refers to the ability of a system to detect low amplitude echoes accurately

C) sensitivity

A 7 MHz pulse is attenuated ____ after it passes through 2 cm of soft tissue

C) 7 dB

volume averaging artifact, lobe artifact and sliced thickness artifact all cause

B) false echoes filling an anechoic structure

which of the following media has the highest propagation speed?

C) bone

how long does it take for sound to travel through soft tissue to a reflector that is 5 cm deep

D) 33 microseconds

Increasing the transducer frequency on a multi hertz transducer will

C) improve the axial resolution in the near and far field

which statement correctly describes reflection

A) the greater the difference in acoustic impedance of two media, the greater the amount of reflection at the interface

which of the following imaging techniques does not require knowledge of the Doppler angle to display flow information

____ is defined as the range of frequencies contained in the ultrasound pulse

C) bandwidth

which of the following imaging techniques would be used to best evaluate the volume of an irregular mass

A) 3D rendering

increasing the frequency improves ____,_____,___

B) axial resolution, lateral resolution, beam width

when sound hits a boundary between two media of the same propagation speed at oblique incidence

C) no refraction will occur

which of the following can be used to improve beam penetration on cases of high body mass index

A) increase transmit power

you are scanning a thyroid gland with a 5 cm wide linear array transducer. you are unable to document the upper and lower poles in the same image to obtain a length measurement of the gland, which of the following techniques would assist in documenting the entire thyroid gland on a single image?

D) panoramic imaging

on the region of interest on a 3D system the X axis represents the _____ and the Y axis represents the ____

B) width of the box, height of the box

if the amplifier power output is two times amplifier power input, what is the value for gain?

D) 3 dB

____ refers to the process of programming the receiving element to use the higher frequency reflections for more superficial structures and lower frequency reflections for deeper structures

D) dynamic frequency tuning

there is 100% reflection when the beam strikes and interface at

A) critical angle

prior to any invasive procedure the patient should be educated about the procedure expected outcomes and any possible complications. The patient will be required to sign a document stating their understanding of these topics in order to proceed with the procedure. This form is called:

B) informed consent form

The average speed of sound in soft tissue is

C) 1540 m/s

what determines the transducer frequency used for evaluation of a foreign body

C) depth of the foreign body

in order to obtain an accurate blood flow velocity calculation the ___ must be known

A) angle between the flow and the sound beam

as frequency increases penetration will

A) decrease

increasing the edge enhancement setting will

D) increase image contrast

what system control should be turned off when attempting to demonstrate posterior enhancement from a suspected cyst

C) spatial compounding

assuming line density is constant at two lines per degree and you change from my 45° sector to a 90° sector how many lines will now be produced

C) 180

as the Doppler angle increases the cosine of the angle

B) decreases

which of the following is an advantage of harmonic imaging?

D) increased signal-to-noise ratio

which of the following causes range ambiguity artifact

A) high PRF

which is the following determines the frequency of waves produced by a continuous wave transducer

A) frequency of electrical excitation voltage

The sonographer may avoid aliasing by altering the

D) image depth

what console control should be adjusted to improve the quality of the Doppler tracing

A) adjust the placement of the Doppler cursor so it is more parallel to the blood flow

The magnitude of the Doppler shift in color Doppler determines

C) the color luminance

Cardiac strain imaging is used to evelatuate the function of the:

B) myocardium

If a patient experiences significant orthopnea how will this change how you perform an ultrasound exam

C) the patient will need to be scanned in the semi-erect position

Which of the following statements is true regarding the differences between a vector array compared to a phased sector array?

D) the vector array has a smaller footprint than the phased sector array

If an ellipse is used to document the circumference of a structure what unit will be used to report the measurement

B) cm

The ability to see flow in a very deep vessel is limited by the fact that

B) blood is less reflective than soft tissues

If the amplifier input power is 0.05mW and the amplifier outpower is 5mW what is the gain?

B) 20 dB

Changing the depth on the image used for M mode tracing will change what characteristic of the display

D) y-axis

Axial resolution artifacts occurr due to ____ while lateral resolution artifacts occur due to ____

B) longer pulses, wide beams

A system that performs parallel processing will demonstrate

A) increased frame rates with reduced lateral resolution

Which of the following would brighten the image without affecting beam intensity?

A) increase the amplitude of reflected sound

Which of the following is an advantage of 2D linear phased array over a 1D linear phased array transducer

B) ability to adjust the elevation focus

Decreasing the number of cycles in a pulse will

A) improve the axial resolution of the system

Lateral resolution is primarily dependent upon

A) beam width

Increasing the number of pulses in a color packet will

A) increase frame time

If you obtain a peak velocity of 60 cm/s with the Doppler correction angle set to 0° and it should be set to 60° for parallel insonation What is the actual velocity in the vessel?

C) 120 cm/s

SPI version A

Karla Alvarez · 100問 · 1年前

SPI version A

100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 B pt 2

Karla Alvarez · 67問 · 1年前

SPI version B pt 2

67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

when removing a protective gown

A 5000 Hz Doppler shift is detected with a 10 MHz transducer. if you switch to a 5 MHz transducer what is the expected Doppler shift

D) 2500 Hz

The centers for disease control recommended signle use sterile ultrasound gel for ultrasound exams performed during which of the following

D) placement of central venous line

After a contrast exam the sonographer should

D) record the amount of contrast use on the exam

what optimization technique creates an image by combining multiple images created at different frequencies

B) frequency compunding

which of the following is resonance artifact only seen with a gas/ tissue interface

B) ring down

what is the method used to estimate the ankle blood pressure in a standing patient

C) add 100mmHg to the systolic blood pressure

which artifact is demonstrated as repetitive reflections separated by equal spacing

B) reverberation

if the beam intensity decreases from 10mW/cm2 to a level of 2.5 mW/cm2 the output power was adjusted by ____

B) -6dB

Read magnification is performed ____ while write magnification is performed ____

B) using static images, during real time scanning

how do you adjust your technique to reduce or eliminate cross talk on a Doppler tracing

C) turn down the Doppler gain

overgaining on an u/s exam can cause ___

A) overestimation of Doppler velocity

which of the following indicates the proper order for putting on personal protective equipment

A) gown, mask, goggles, gloves

which of the following correctly describes the sensitivity of a testing technique

A) the ability of a test to detect disease when it is present

which statement regarding the differences between pulsed and continuous wave Doppler is correct

D) CW Doppler tracing does not display a spectral window with any flow type

flow moving away from the transducer will demonstrate

C) below the baseline

the Doppler shift is 5000Hz the pulse repetition frequency is 9000Hz which of the following is true

D) aliasing will occur

while using a linear phased array to perform a vascular exam, you noticed that the color box will only allow you to place it centrally and steer 20° to the right this issue is most suggestive of

C) PE element damage

____ refers to the ability of a system to detect low amplitude echoes accurately

C) sensitivity

A 7 MHz pulse is attenuated ____ after it passes through 2 cm of soft tissue

C) 7 dB

volume averaging artifact, lobe artifact and sliced thickness artifact all cause

B) false echoes filling an anechoic structure

which of the following media has the highest propagation speed?

C) bone

how long does it take for sound to travel through soft tissue to a reflector that is 5 cm deep

D) 33 microseconds

Increasing the transducer frequency on a multi hertz transducer will

C) improve the axial resolution in the near and far field

which statement correctly describes reflection

A) the greater the difference in acoustic impedance of two media, the greater the amount of reflection at the interface

which of the following imaging techniques does not require knowledge of the Doppler angle to display flow information

____ is defined as the range of frequencies contained in the ultrasound pulse

C) bandwidth

which of the following imaging techniques would be used to best evaluate the volume of an irregular mass

A) 3D rendering

increasing the frequency improves ____,_____,___

B) axial resolution, lateral resolution, beam width

when sound hits a boundary between two media of the same propagation speed at oblique incidence

C) no refraction will occur

which of the following can be used to improve beam penetration on cases of high body mass index

A) increase transmit power

D) panoramic imaging

on the region of interest on a 3D system the X axis represents the _____ and the Y axis represents the ____

B) width of the box, height of the box

if the amplifier power output is two times amplifier power input, what is the value for gain?

D) 3 dB

____ refers to the process of programming the receiving element to use the higher frequency reflections for more superficial structures and lower frequency reflections for deeper structures

D) dynamic frequency tuning

there is 100% reflection when the beam strikes and interface at

A) critical angle

B) informed consent form

The average speed of sound in soft tissue is

C) 1540 m/s

what determines the transducer frequency used for evaluation of a foreign body

C) depth of the foreign body

in order to obtain an accurate blood flow velocity calculation the ___ must be known

A) angle between the flow and the sound beam

as frequency increases penetration will

A) decrease

increasing the edge enhancement setting will

D) increase image contrast

what system control should be turned off when attempting to demonstrate posterior enhancement from a suspected cyst

C) spatial compounding

assuming line density is constant at two lines per degree and you change from my 45° sector to a 90° sector how many lines will now be produced

C) 180

as the Doppler angle increases the cosine of the angle

B) decreases

which of the following is an advantage of harmonic imaging?

D) increased signal-to-noise ratio

which of the following causes range ambiguity artifact

A) high PRF

which is the following determines the frequency of waves produced by a continuous wave transducer

A) frequency of electrical excitation voltage

The sonographer may avoid aliasing by altering the

D) image depth

what console control should be adjusted to improve the quality of the Doppler tracing

A) adjust the placement of the Doppler cursor so it is more parallel to the blood flow

The magnitude of the Doppler shift in color Doppler determines

C) the color luminance

Cardiac strain imaging is used to evelatuate the function of the:

B) myocardium

If a patient experiences significant orthopnea how will this change how you perform an ultrasound exam

C) the patient will need to be scanned in the semi-erect position

Which of the following statements is true regarding the differences between a vector array compared to a phased sector array?

D) the vector array has a smaller footprint than the phased sector array

If an ellipse is used to document the circumference of a structure what unit will be used to report the measurement

B) cm

The ability to see flow in a very deep vessel is limited by the fact that

B) blood is less reflective than soft tissues

If the amplifier input power is 0.05mW and the amplifier outpower is 5mW what is the gain?

B) 20 dB

Changing the depth on the image used for M mode tracing will change what characteristic of the display

D) y-axis

Axial resolution artifacts occurr due to ____ while lateral resolution artifacts occur due to ____

B) longer pulses, wide beams

A system that performs parallel processing will demonstrate

A) increased frame rates with reduced lateral resolution

Which of the following would brighten the image without affecting beam intensity?

A) increase the amplitude of reflected sound

Which of the following is an advantage of 2D linear phased array over a 1D linear phased array transducer

B) ability to adjust the elevation focus

Decreasing the number of cycles in a pulse will

A) improve the axial resolution of the system

Lateral resolution is primarily dependent upon

A) beam width

Increasing the number of pulses in a color packet will

A) increase frame time

If you obtain a peak velocity of 60 cm/s with the Doppler correction angle set to 0° and it should be set to 60° for parallel insonation What is the actual velocity in the vessel?

C) 120 cm/s