15 Questions
What is the term used to describe the strength of a current at any one point in time?
Amplitude
Which type of current is characterized by uninterrupted bidirectional flow of ions that changes direction at least one time per second?
Alternating current (AC)
What is the term used to describe the time it takes for a waveform to complete one direction of current flow (positive or negative)?
Phase duration
What is the primary method of delivering therapeutic electrical stimulation?
Biphasic pulses with two separate phases of negative and positive electron flow
What is the underlying mechanism for pain management through TENS (transcutaneous electrical neuromuscular stimulation)?
Sensory nerve stimulation
Which mode of TES (transcutaneous electrical stimulation) can be used to re-establish dormant motor pathways in patients with inabilities to intentionally activate their muscles?
FES (functional electrical stimulation)
What is the fundamental property of an electrical charge that states charge is neither created nor destroyed?
Charge being transferred from one object to another
What is the international unit of current according to the text?
Amp
What creates a force that results from the separation of charges and determines whether it's attraction or repulsion?
Electric field
What is the main consideration for muscle contractions when the pulse frequency is below 85 pulses per second?
Improved muscle strength
What is the recommended duty cycle for therapeutic effect and muscle reeducation?
1:5 on-off ratio
What is the main purpose of a longer pulse duration in electrical stimulation?
Stimulating denervated muscles
Which type of electrical stimulation does NOT affect muscle contraction?
Microcurrent electrical nerve stimulation (MENS)
Which type of waveform has a net charge of 0 and is characterized by equal amplitudes in phase duration of positive and negative charges?
Biphasic waveform
In which type of waveform are the interphase/interpulse intervals long enough to control negative side effects to net charges while being therapeutic, and is commonly used for high voltage current?
Monophasic pulsed waveform
Test your knowledge of therapeutic electrical stimulation with this quiz. Learn about monophasic and biphasic pulses, interpulse intervals, burst currents, and frequency parameters used in delivering electrical stimulation.
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