Electrotherapy Flashcards
electrical current
is the flow of electrical charge particles
what is the charge of the anode?
positive (red)
What is the charge of the cathode?
negative (black)
What is a direct current?
continuous unidirectional flow of particles
alternating current
continuous bidirectional flow of particles
what is amplitude?
magnitude of current?
what are three types of med frequency alternating current?
interferential, pre-mod, and Russian
interferential current is most effective
inflammation and ischemia.
What is the frequency of Russian protocol
2500 Hz.
What is the strength duration curve?
The amount of electricity required to produce an action potential depends on the type of nerve and can be represented by the nerve’s strength-duration curve
Slow twitch fibers are:
type 1
small nerve
fatigue and atrophy resistant
Fast twitch fibers are:
type2
larger nerve innervation
fatigue quickly
If you were trying to reduce muscle spasm which ratio would you use?
1:1 ratio
How does interferential current work?
Produced by the interference of two medium frequency alternating currents of slightly different frequencies.
They cause a higher amp working together
Cause a lower amp working against each other.
calculate wave by the difference of the frequencies.
What is interferential current used for?
decrease pain associated with inflammation and ischemia.
