Color M-mode Quiz

Where should the color M-mode cursor be placed to measure the propagation velocity of blood flow?

• Perpendicular to mitral inflow at the edge of the flow stream

• Parallel to mitral inflow in the center of the flow stream

• Parallel to mitral inflow at the edge of the flow stream

• Perpendicular to mitral inflow in the center of the flow stream

What is an indication of normal diastolic function in color M-mode?

• Flow velocity < 50cm/sec

• Flow velocity > 50cm/sec

• Flow velocity = 50cm/sec

• Flow velocity > 70cm/sec

What pattern is associated with normal diastolic function in color M-mode?

• Nearly horizontal M-mode color pattern

• Random M-mode color pattern

• Nearly vertical M-mode color pattern

• Diagonal M-mode color pattern

How is the flow propagation velocity affected in restrictive ventricular filling?

• It is increased

• It is decreased

• It remains constant

• It is not affected

How is the flow propagation velocity affected in constrictive pericarditis?

• It is increased

• It is decreased

• It remains constant

• It is not affected

What does myocardial motion measure?

• The color of the myocardium

• The distance and velocity of myocardial movement

• The temperature of the myocardium

• The weight of the myocardium

What can the measure of myocardial motion tell us about?

• The electrical activity of the heart

• The age of the heart

• Systolic and diastolic functioning of the heart

• The size of the heart

Compared to muscle, how does blood move?

• Slower and is denser

• Faster and is less dense

• At the same speed and density

• Faster but is denser

What are the characteristics of Doppler shifts from blood movement?

• Low velocity and high amplitude

• High velocity and high amplitude

• High velocity and low amplitude

• Low velocity and low amplitude

What are the characteristics of Doppler shifts from muscle movement?

• High velocity and high amplitude

• High velocity and low amplitude

• Low velocity and high amplitude

• Low velocity and low amplitude