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thermosec4
Therapeutic Modalities section 4 quiz
| Question | Answer |
|---|---|
| Electrons travel from the _________, which has a _______ of electrons, to the__________, which has a _______ of electrons. | cathode, high concentration, anode, low concentration |
| Monopolar stimulation involves the use of active and dispersive electrodes. The parameter that determines which electrode will be active is: | the current density |
| What is the percent duty cycle for an electical current that flows for 30 seconds and has no flow for 10 seconds? | 75% |
| All of the following are excitable tissues except: | Meniscal Cartilage (other choices-muscle fiber, sensory nerves, secretory cells) |
| Which of the following would be the modality of choice to cause physiochemcial changes iwthin the tissue? | Low voltage alternating current (other choices-high-volatage pulsed sitmulation, interferential stimulation, low-voltage direct current) |
| Under normal circumstances, which of the following nerves would be the first to be stimulated by an electrical current? superficial large-diameter nerve, a deep large diamerter nerve, a superficial small-diamter nerve, a dee small diamter nerve | a superficial large diameter nerve |
| Most tissues provide capacitive resistance to electrical current flow. Which of the following currents would meet the least amount of capacitive reisstance? 1 Hz, 10 hz, 50 hz, 100hz | 100Hz |
| An electrical stimulation protocol that uses a high pullsed fequency(eg 120 pps), short pulse duration, and applied at the sensory level is thought to avtivate which pain control mechanism? | Gate mechanism |
| The electrodes from lead A have an area of 20 square inches, and the electrodes originating from lead b have an area of 4 square inches. this type of stimulation would be classified asL | Monopolar |
| You are setting up an electrical stimulation unit to conrol pain through the gate-control theory of pain modulation. the correct paramters for this are: | high pulse rate, short pulse duration, long treatment duration, sensory level stimulation |
| iontophoresis is a technique that introduces medication into the tissues through the use of an electric current. for this method to work, the medication must: | Have a net ion charge |
| interferential stimulation is being applied with a carrier current of 4000Hz and an interference current of 4130 Hz. The effective frewuency of the current within the tissue is: | 130 Hz |
| Which of the following condistion is a contradication to the use of the electrical stimulation? post-traumatic pain, postsurgical pain, chronic pain, pain of unknown origin | pain of unknown origin |
| A high-voltage pulsed stimulator uses what type of current? | Monophasic |
| When attempting to reeducate the quads immediately post surgery, a ____ percent duty cycle should be used. | 20% |
| In general, a tonic contraction occurs when the number of pulses per second exceeds: | 60 |
| "the uninteruppted, bidirectional flow of electrons," best describes which current? | Biphasic |
| In an electrical current, electrical flow consists of the movement of electrones, in the bodys tissues, therapeutic current flow consists of the flow of | ions |
| A POLARITY switch would be found on which modatlity? | high-voltage pulsed stimulator |
| traumatized areas and stimulation points (eg motor points, trigger points) display a(n) resistance to current flow | decreased |
Created by:
jwebst1
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