a.) decrease, velocity spread b.) increase, turbulence c.) increase, laminar flow d.) decrease, gradient flow
You said: b). increase, turbulence
Correct! Refer to Increased Velocity and Nonlaminar Flow for further study. See: Increased Velocity and Nonlaminar Flow
a.) PRF b.) Nyquist limit c.) scale d.) Bernoulli equation
You said: b). Nyquist limit
Correct! Refer to The Nyquist Limit for further study. See: The Nyquist Limit
a.) parallel b.) perpendicular c.) CW d.) nonparallel
You said: a). parallel
Correct! Refer to The Most Accurate Velocity Measurements for further study. See: The Most Accurate Velocity Measurements
a.) decrease sample gate depth, increase sweep speed b.) change zero line position, use a CW transducer c.) decrease PRF, use a higher frequency transducer d.) increase depth, use a lower frequency transducer
You said: b). change zero line position, use a CW transducer
Correct! Refer to Aliasing for further study. See: Aliasing
a.) beyond b.) distal to c.) proximal to d.) within
You said: c). proximal to
Correct! Refer to Abnormal Flow Patterns for further study. See: Examples of Abnormal Flow Patterns a.) A b.) B c.) C d.) D
You said: b). B
Correct! Refer to Differences in the CW and PW Spectrum for further study. See: Differences in the CW and PW Spectrum
a.) range gating b.) 126 channels c.) one crystal d.) two crystals
You said: d). two crystals
Correct! Refer to The Continuous Wave Transducer for further study. See: The Continuous Wave Transducer
a.) of a high Doppler gain setting. b.) the display includes blood flow information from the entire beam. c.) the display includes blood flow information from range gating. d.) the flow has multiple abnormal velocities resulting in spectral broadening.
You said: b). the display includes blood flow information from the entire beam.
Correct! Refer to Differences in the CW and PW Spectrum for further study. See: Differences in the CW and PW Spectrum
a.) compressed b.) elongated c.) pitched d.) decreased
You said: c). pitched
Incorrect! Refer to The Doppler Effect for further study. See: The Doppler Effect a.) aorta. b.) TV. c.) MV. d.) PA.
You said: d). PA.
Correct! Refer to The Doppler Equation for further study. See: The Doppler Equation
a.) to use range gating. b.) the accuracy of velocity measurements. c.) to localize a stenosis. d.) to decrease aliasing.
You said: c). to localize a stenosis.
Correct! Refer to Differences in the CW and PW Spectrum for further study. See: Differences in the CW and PW Spectrum
a.) frequency, angle b.) beamwidth, size c.) profile, depth d.) footprint, number
You said: d). footprint, number
Incorrect! Refer to Range Gating for further study. See: Range Gating
a.) below b.) above c.) bidirectionally d.) around
You said: a). below
Correct! Refer to Examples of Normal PW Doppler Flow Patterns for further study. See: Examples of Normal PW Doppler Flow Patterns
a.) Velocity b.) MHz c.) Frequency d.) Hertz
You said: a). Velocity
Incorrect! Refer to The Doppler Equation for further study. See: The Doppler Equation
a.) descending aorta b.) RVOT c.) LV inflow d.) left pulmonary artery flow
You said: d). left pulmonary artery flow
Incorrect! Refer to CW Transducer Technique for further study. See: CW Transducer Technique
a.) Nyquist limit b.) PRF c.) aliasing d.) sweep speed
You said: a). Nyquist limit
Incorrect! Refer to Pulse Repetition Frequency for further study. See: Pulse Repetition Frequency
a.) towards b.) away from c.) above d.) below
You said: d). below
Correct! Refer to Examples of Normal CW Doppler Flow Patterns for further study. See: Examples of Normal PW Doppler Flow Patterns
a.) towards the transducer. b.) away from the transducer. c.) that is unidirecitonal. d.) from a stenotic PA.
You said: b). away from the transducer.
Correct! Refer to Direction of Flow for further study. See: Direction of Flow |