Hemodynamics

Question 1

____ flow occurs when blood moves with a variable velocity.

steady
laminar

pulsatile
eddy current

Answer 1

pulsatile

Question 2

All are forms of energy associated with blood except one
kinetic
pressure
electric
gravitational

Answer 2

electric

Question 3

As blood flows through the circulation, energy is lost in three ways. What are they?

viscous, frictional, inertial

Answer 3

viscous, frictional, inertial

Question 4

Blood accelerates and decelerates as a result of cardiac contraction

pulsatile
phasic
steady
laminar

Answer 4

pulsatile

Question 5

Blood sliding across the vessel walls creates?

a mess
static

heat
pain

Answer 5

heat

Question 6

Describes the thickness of a fluid. Which of the energy losses is correct

inertial
viscous
frictional

Answer 6

viscous

Question 7

Does velocity increase or decrease as blood flows out of the stenosis

increases
decreases
no change

Answer 7

decreases

Question 8

Energy associated with any elevated object?

pressure
kinetic
gravitational
electrical

Answer 8

gravitational

Question 9

Energy associated with moving object

kinetic
electric
gravitational
pressure

Answer 9

kinetic

Question 10

Flow is also called?
liter flow rate

volume flow rate
volume index

Answer 10

volume flow rate

Question 11

Flow is characterized by chaotic flow patterns in many different directions and at many speeds.

laminar
plug
parabolic
turbulent

Answer 11

turbulent

Question 12

Flow is when the flow streamlines are aligned and parallel.

laminar
turbulent
harmonics
eddy’s current

Answer 12

laminar

Question 13

Flow less than 1,500 is considered what type of flow?

turbulent
laminar
eddy’s current
chaotic

Answer 13

laminar

Question 14

flow occurs when blood moves with a variable velocity as a result of respiration.

pulsatile
phasic
steady
laminar

Answer 14

phasic

Question 15

flow occurs when fluid moves at a constant speed or velocity.

turbulent
eddy’s current
chaotic
steady

Answer 15

steady

Question 16

Has a bullet shaped profile. Velocity highest in the center of the lumen, and gradually decreased at the vessel wall

plug
parabolic
turbulent
eddy’s current

Answer 16

parabolic

Question 17

Has two forms including plug, and parabolic flow

turbulent
laminar
eddy’s current
Reynold’s number

Answer 17

laminar

Question 18

Indicates the speed of a fluid moving from one location to another. how fast?

flow
velocity
linear
hemodynamics

Answer 18

velocity

Question 19

Is a form of stored or potential energy. Ability to do work

kinetic
pressure
gravitational

Answer 19

pressure

Question 20

Is characterized by layers of blood that travels at individual speeds

turbulent
eddy’s current
laminar
Reynold’s number

Answer 20

laminar

Question 21

Loss occurs when flow energy is converted to heat as one object rubs another.

frictional
inertial
viscous

Answer 21

frictional

Question 22

Kinetic energy is determined by two factors?

size and shape
length and height
mass and size
speed and mass

Answer 22

speed and mass

Question 23

Predict whether flow is laminar or turbulent

Ohms law
Pascals
Reynold’s number
phone number

Answer 23

Reynold’s number

Question 24

Occurs when all of the layers and blood cells travel at the same velocity

plug
parabolic
eddy’s current
turbulent

Answer 24

plug

Question 25

Relates to the tendency of fluid to resist changes in it velocity firctional kinetic inertial pressure

Answer 25

inertial

Question 26

Small hurricane-like swirling, rotational patterns appear in turbulent flow. normal linear non linear eddy's current laminar

Answer 26

eddy's current

Question 26

Sound associated with turbulence is called a murmur or ___ thrill bruit vibration eddy's current

Answer 26

bruit

Question 27

Which part of the stenosis has the maximum velocity? before stenosis middle of stenosis after stenosis no change

Answer 27

middle of stenosis

Question 28

What indicates the volume of blood moving during a particular time. contraction flow turbulent units

Answer 28

flow

Question 29

T of F: Both plug and parabolic flow are normal F T

Answer 29

T

Question 29

T or F: turbulent patterns may be seen upstream from a significant stenosis. T F

Answer 29

F

Question 30

Vibration associated with turbulence is called a ? bruit thrill stenosis narrowing

Answer 30

thrill

Question 31

The Reynolds number for turbulent is greater than _____ 1000 1500 1800 2000

Answer 31

2000

Question 32

What are the three basic forms of flow?

Answer 32

pulsatile, phasic, steady

Question 33

T or F: Cross country skier at bottom of the mountain has high gravitational energy. T F

Answer 33

F

Question 34

The units for ___ are volume divided by time, such as liters/min harmonics hemodynamics flow pulsatile

Answer 34

flow

Question 35

T or F: A heavy object moving swiftly have low kinetic energy? You Answered T F

Answer 35

F

Question 36

Turbulent flow converts flow energy into sound and ___. May be more than one answer heat vibration bruit thrill

Answer 36

vibration thrill

Question 37

Steady flow is present in ___ system when the person stops breathing for a period arterial venous cardiac pulmonary

Answer 37

venous

Question 38

T or F: More energy is lost with movement of high viscosity fluids. F T

Answer 38

T

Question 39

The word lamina means? lamborginini lauma layers length

Answer 39

layers

Question 40

Streamlines are obliterated in this type of flow plug parabolic turbulent laminar

Answer 40

turbulent

Question 41

The study of blood moving through the circulatory system. harmonics dynamic range hemodynamics turbulent

Answer 41

hemodynamics

Question 42

Which of the three forms of energy are like a can of whip cream, hairspray, or paint can pressure kinetic gravitational

Answer 42

pressure

Question 43

T or F: Blood moves from low energy to high energy T F

Answer 43

F

Question 44

T or F: energy is lost when blood speeds up or slows down. T F

Answer 44

T

Question 45

Who states that " objects in motion stay in motion" Pascal Brian Gorman Newton Obama

Answer 45

Newton

Question 46

Units for ___ are distance divided by time. flow velocity harmonics dynamic range

Answer 46

velocity