Test Bank Solution Manual for Ultrasound in Hemodynamics 100% Pass
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Course
Hemodynamics
Institution
Hemodynamics
Test Bank Solution Manual for Ultrasound in Hemodynamics 100% Pass
The study of blood moving through the circulatory system - Answers hemodynamics
another name for flow - Answers volume flow rate
indicates the volume of blood moving during a particular time - Answers flow
Measures how much - An...
Test Bank Solution Manual for Ultrasound in Hemodynamics 100% Pass
The study of blood moving through the circulatory system - Answers hemodynamics
another name for flow - Answers volume flow rate
indicates the volume of blood moving during a particular time - Answers flow
Measures how much - Answers flow
What are the units of flow? - Answers volume/time
indicates speed or swiftness of a fluid moving from one location to another - Answers velocity
measures how fast - Answers velocity
What are the units of velocity? - Answers distance/time
Name three forms of flow: - Answers pulsatile, phasic, and steady
blood accelerates and decelerates from cardiac contraction - Answers pulsatile flow
blood accelerates and decelerates from respiration - Answers phasic flow
Pulsatile flow often appears in the form of - Answers arterial
Phasic flow often appears in the form of - Answers venous
occurs when a fluid moves at a constant speed or velocity - Answers steady
Flow present in venous circulation when individuals stop breathing for a moment - Answers steady
exists when the flow streamlines are aligned and parallel - Answers laminar flow
What does lamina mean? - Answers layer
characterized by layers of blood that travel at individual speeds - Answers laminar flow
laminar flow patterns are commonly found in ______ physiologic states - Answers normal
Name the two forms of laminar flow: - Answers parabolic and plug
occurs when all layers of blood travel at the same velocity - Answers plug
velocity is highest at the center of the lumen and gradually decreases to its minimum at the vessel walls
- Answers parabolic
T/F both plug and parabolic are laminar flow and considered normal - Answers T
When Reynold's number is >2000 flow is considered - Answers turbulent
, chatotic flow patterns - Answers turbulent
small hurricane-like swirling, rotational patterns - Answers eddy currents or vortex
turbulent flow is often assoc w/ - Answers cardio pathology and increased blood velocity
turbulent flow converts flow energy into other forms: - Answers sound and vibration
sound assoc w/turbulent flow is called: - Answers murmur or bruit
vibration assoc w/turbulent flow - Answers thrill
palpable murmur - Answers thrill
total fluid energy at one location differs from the total fluid energy at another location causing an -
Answers energy gradient
Does blood flow from a pressure gradient? - Answers no! (from an energy gradient)
Name 3 forms of energy associated w/blood - Answers kinetic, pressure, and gravitational
T/F total energy at a specific location is the sum of all 3 energies assoc w/blood - Answers t
energy assoc/ w/moving objects - Answers kinetic
kinetic energy is determined by two factors - Answers mass of object and speed at which it moves
energy that provides flow by overcoming resistance - Answers pressure energy
pressure energy is a form of - Answers stored or potential energy
gravitational energy is a form of - Answers stored or potential energy
energy assoc w/elevated objects - Answers gravitational
all elevated objects have stored ____ - Answers gravitational energy
Energy is imparted to blood by the contraction of the ___ _____ during _____. - Answers left ventricle,
systole
Energy is lost in three ways through blood circulation: - Answers viscous, frictional, inertial
thickness of a fluid - Answers viscosity
Is more or less energy lost w/the movement of fluids w/high viscosity? - Answers more
assoc w/blood overcoming its internal stickiness - Answers viscous loss
percentage of RBCs in blood - Answers hematocrit
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