Vascular UT exam 1| 51 QUESTIONS| WITH COMPLETE SOLUTIONS

Name the term for the deceleration phase of the pulse, where the heart is relaxed CORRECT ANSWERS: diastole What is the sound heard due to auscultation of the vessel inside a stenotic area CORRECT ANSWERS: bruit Name the 3 things that Poiseuille's equation relates to CORRECT ANSWERS: Pressure, Viscosity, Vessel length What detects all flow in its path and does not have a sample volume? CORRECT ANSWERS: continuous wave doppler Name the layer of thin endothelium over a base membrane and is the intermost layer of the arterial wall. CORRECT ANSWERS: Tunica intima With a ventricular contraction, name the amount of blood that is ejected from the heart is called CORRECT ANSWERS: stroke volume Where are the highest velocities found in regards to laminar flow patterns? CORRECT ANSWERS: The center of the vessel What would you expect if the radius of a vessel decreases in size due to stenotic material within the vessel lumen? CORRECT ANSWERS: Blood pressure increases if the diameter of the blood vessel decreases. T/F Turbulent flow has a predictable flow profile CORRECT ANSWERS: false According to what does laminar flow tend to be come disturbed when it exceeds 2,000 CORRECT ANSWERS: reynold's number What is the Doppler Effect? CORRECT ANSWERS: the change in frequency in sound resulting from motion between source (transducer) and receiver (transducer); can result in a positive or negative shift What does Spectral broadening refer to? CORRECT ANSWERS: filling in of the spectral window/an increase in the number of frequencies is known as What is the typical waveform pattern of the ICA? CORRECT ANSWERS: low resistance When black is displayed using the Color Doppler what does that mean? CORRECT ANSWERS: color gain set too low, ther