Therapeutic Electrical Stimulation Quiz
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Questions and Answers

What is the term used to describe the strength of a current at any one point in time?

  • Amplitude (correct)
  • Rise time
  • Decay time
  • Frequency
  • Which type of current is characterized by uninterrupted bidirectional flow of ions that changes direction at least one time per second?

  • Biphasic monophonic current
  • Direct current (DC)
  • Pulse current
  • Alternating current (AC) (correct)
  • What is the term used to describe the time it takes for a waveform to complete one direction of current flow (positive or negative)?

  • Frequency
  • Phase duration (correct)
  • Cycle duration
  • Amplitude
  • What is the primary method of delivering therapeutic electrical stimulation?

    <p>Biphasic pulses with two separate phases of negative and positive electron flow</p> Signup and view all the answers

    What is the underlying mechanism for pain management through TENS (transcutaneous electrical neuromuscular stimulation)?

    <p>Sensory nerve stimulation</p> Signup and view all the answers

    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?

    <p>FES (functional electrical stimulation)</p> Signup and view all the answers

    What is the fundamental property of an electrical charge that states charge is neither created nor destroyed?

    <p>Charge being transferred from one object to another</p> Signup and view all the answers

    What is the international unit of current according to the text?

    <p>Amp</p> Signup and view all the answers

    What creates a force that results from the separation of charges and determines whether it's attraction or repulsion?

    <p>Electric field</p> Signup and view all the answers

    What is the main consideration for muscle contractions when the pulse frequency is below 85 pulses per second?

    <p>Improved muscle strength</p> Signup and view all the answers

    What is the recommended duty cycle for therapeutic effect and muscle reeducation?

    <p>1:5 on-off ratio</p> Signup and view all the answers

    What is the main purpose of a longer pulse duration in electrical stimulation?

    <p>Stimulating denervated muscles</p> Signup and view all the answers

    Which type of electrical stimulation does NOT affect muscle contraction?

    <p>Microcurrent electrical nerve stimulation (MENS)</p> Signup and view all the answers

    Which type of waveform has a net charge of 0 and is characterized by equal amplitudes in phase duration of positive and negative charges?

    <p>Biphasic waveform</p> Signup and view all the answers

    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?

    <p>Monophasic pulsed waveform</p> Signup and view all the answers

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