Module 3 Flashcards
Power is expressed in units termed Watts. What are the units for intensity?
W/cm^2
Total energy is equal to which of the following
Sum of potential energy + kinetic energy
What is the relationship between power and the cross sectional area of the sound beam
They are directly proportional
Ohm’s law is analogous to
Poiseuille’s law
A recording device that converts sonographic images to digital format for network review and storage is
PACS
Which of the following modes is used in venous plethysmographic testing
DC mode
Which imaging system is calibrated using a tissue equivalent phantom
Duplex
The unit of measure expressing systolic pressure is
mmHg
The rate of outflow following the release of a venous tourniquet is termed
MVO
Pulse volume recording can assess
An increase in limb volume during systole
The recommended width of a cuff used for segmental pressure measurement is
20% wider than the diameter of the limb segment
A cuff used for pressure measurement that is too narrow will result in
An overestimation of the pressure
Non-invasive testing technique that measures volume changes in the limb is referred to as
Plethysmography
All of the following are methods of pressure measurements except
Palpatory
Resistive index is calculated using what spectral Doppler measurement
Peak systolic velocity and end diastolic velocity
