Modalities Exam 3 Questions & Answers
What unit is used to express the relationship between voltage and amperage? -
ANSWERSWattage
What type of electrical current is identified by the fact that electrons flow in one direction
only? - ANSWERSDirect Current
Why is neuromuscular electrical stimulation (NMES) able to provide stronger
neuromuscular stimulation than other forms of stimulation? - ANSWERSLong phase
duration
When examining the pulse characteristics, what is the most important factor when
determining what type of tissue will be stimulated? - ANSWERSPhase duration
What is an indication for the use of iontophoresis? - ANSWERSChronic inflammation
What are the correct pain control parameters of an electrical stimulation treatment
targeting a Gate-Theory pain relief strategy? - ANSWERSHigh pulse frequency with
sensory level stimulation
What is Ohm's Law? - ANSWERSV=IR
When examining the attributes of the pulse, what will lead to an increase in the total
charge of the pulse? - ANSWERSDecrease in pulse duration
When using an alternating current, how many times would a current of 100 Hz change
its direction of flow in two seconds? - ANSWERS200
What property of electrical current identifies the maximum distance that the pulse rises
above or below the isoelectric point? - ANSWERSAmplitude
What type has the strongest evidence for use to remove edema? - ANSWERSMotor-
level stimulation
, When targeting superficial tissues, how should you place the electrodes? -
ANSWERSCloser together
What type of electrical current is primarily used for neuromuscular reeducation and
strength augmentation? - ANSWERSNeuromuscular electrical stimulation (VMS,
Russian)
What stimulation level has an intensity that is 10% below the intensity that produces a
visible muscle contraction? - ANSWERSSensory-level stimulation
If a patient is receiving neuromuscular stimulation with a duty cycle 10/50, for 20
minutes, what is true for muscle activation? - ANSWERSThis duty cycle will be
advantageous for improving muscle activation and limiting atrophy
With monophasic current what is synonymous with Phase - ANSWERSPulse
What type of electrical interference occurs when two electrical currents are fully out of
phase, meaning the wavelengths are equal, but one current is at it's peak when the
other is at 0? - ANSWERSDestructive interference
Which is true regarding electrically induced muscle contractions? -
ANSWERSContractions and recruitment are synchronous
When preparing the patient for a pain-control technique with electrical stimulation, one
should ask about caffeine intake. The effectiveness of electrical stimulation on pain
control is diminished after how many milligrams of caffeine have been ingested? -
ANSWERS200
A monopolar electrode setup is characterized by - ANSWERSOne active electrode and
one larger dispersive elctrode originating from the same channel
What best describes habituation? - ANSWERSThe CNS process one experiences
everyday of filtering out a continuous, nonmeaningful stimuli
Which of the following represents a wound healing effect under the cathode, negative
pole, while using direct current or high-volt pulsed stimulation? - ANSWERSFibroblast
proliferation
Most effects of electrical stimulation are the direct result of stimulation to what? -
ANSWERSSensory nerves
What type of electrical interference does interferential use? - ANSWERSContinuous
interference
What unit is used to express the relationship between voltage and amperage? -
ANSWERSWattage
What type of electrical current is identified by the fact that electrons flow in one direction
only? - ANSWERSDirect Current
Why is neuromuscular electrical stimulation (NMES) able to provide stronger
neuromuscular stimulation than other forms of stimulation? - ANSWERSLong phase
duration
When examining the pulse characteristics, what is the most important factor when
determining what type of tissue will be stimulated? - ANSWERSPhase duration
What is an indication for the use of iontophoresis? - ANSWERSChronic inflammation
What are the correct pain control parameters of an electrical stimulation treatment
targeting a Gate-Theory pain relief strategy? - ANSWERSHigh pulse frequency with
sensory level stimulation
What is Ohm's Law? - ANSWERSV=IR
When examining the attributes of the pulse, what will lead to an increase in the total
charge of the pulse? - ANSWERSDecrease in pulse duration
When using an alternating current, how many times would a current of 100 Hz change
its direction of flow in two seconds? - ANSWERS200
What property of electrical current identifies the maximum distance that the pulse rises
above or below the isoelectric point? - ANSWERSAmplitude
What type has the strongest evidence for use to remove edema? - ANSWERSMotor-
level stimulation
, When targeting superficial tissues, how should you place the electrodes? -
ANSWERSCloser together
What type of electrical current is primarily used for neuromuscular reeducation and
strength augmentation? - ANSWERSNeuromuscular electrical stimulation (VMS,
Russian)
What stimulation level has an intensity that is 10% below the intensity that produces a
visible muscle contraction? - ANSWERSSensory-level stimulation
If a patient is receiving neuromuscular stimulation with a duty cycle 10/50, for 20
minutes, what is true for muscle activation? - ANSWERSThis duty cycle will be
advantageous for improving muscle activation and limiting atrophy
With monophasic current what is synonymous with Phase - ANSWERSPulse
What type of electrical interference occurs when two electrical currents are fully out of
phase, meaning the wavelengths are equal, but one current is at it's peak when the
other is at 0? - ANSWERSDestructive interference
Which is true regarding electrically induced muscle contractions? -
ANSWERSContractions and recruitment are synchronous
When preparing the patient for a pain-control technique with electrical stimulation, one
should ask about caffeine intake. The effectiveness of electrical stimulation on pain
control is diminished after how many milligrams of caffeine have been ingested? -
ANSWERS200
A monopolar electrode setup is characterized by - ANSWERSOne active electrode and
one larger dispersive elctrode originating from the same channel
What best describes habituation? - ANSWERSThe CNS process one experiences
everyday of filtering out a continuous, nonmeaningful stimuli
Which of the following represents a wound healing effect under the cathode, negative
pole, while using direct current or high-volt pulsed stimulation? - ANSWERSFibroblast
proliferation
Most effects of electrical stimulation are the direct result of stimulation to what? -
ANSWERSSensory nerves
What type of electrical interference does interferential use? - ANSWERSContinuous
interference
