# quiz #1 – therapeutic electrical stimulation

 .remove_background_ad { border: 1px solid #555555; padding: .75em; margin: .75em; background-color: #e7e7e7; } .rmbg_image { max-height: 80px; } what is therapeutic electrical stimulation passing current into tissue to promote healing, reduce pain, increase/maintain strength, reduce edema, decreased spasticity, improve motor control, past drugs define anode positive charged electrode, attracts anions define cathode negatively charged electrodes, attracts anions defined voltage potential difference of energy between electrodes, provided by battery or line voltage name the four items in this picture true or false – an example of direct current is a wall outlet false – battery true or false – an example of alternating current is a wall outlet true Coulomb number 6.24 X 10^18 of charged particlesAvogadro's number Ampere 1 Coulomb of charge per second Volt energy needed to move 1 coulomb through 1 ohm of resistance (V=IR) What is direct current? continues uninterrupted, in a unidirectional flow for atleast 1 secuse for iontophoresis or stimulation of denervated muscles What is alternating current? the current flow changes direction60 Hz/sec what can we conclude from this picture The longer the pulse width the higher the average voltage what are the characteristics of this waveform rectangularsymmetricalbiphasicpulsed currentAC current what are the characteristics of this waveform unbalancedasymmetricalbiphasicpulsed currentAC Current what is the name of this wave sinusoidal waveAC current what is the name of this wave form high-voltage galvanicDC "one of the most comfortable wave forms" what are the units of measurement for frequency pulses per second – Hz What does the patient feel when the pulse duration is increased? It feels more intense to the patient even though it is the same voltage because there is more charge absorbed when there is a longer time period for the pulse When frequency increases what occurs? the same number of fibers are recruited, but a higher frequency makes them fire more rapidly .remove_background_ad { border: 1px solid #555555; padding: .75em; margin: .75em; background-color: #e7e7e7; } .rmbg_image { max-height: 80px; } AuthorBPT ID66733 Card Setquiz #1 – therapeutic electrical stimulation Descriptiontherapeutic electrical stimulation Updated2011-02-27T03:13:00Z Show Answers