Electrical Current correct answers Flow of charged particles
Motor Points correct answers Locations on the skin where electrical stimulation most effectively causes specific muscles to contract
Russian
NMES correct answers What electrical current should you use to produce muscle contractions...
PTA 220 - Unit 2 Exam || A+ Graded Already.
Electrical Current correct answers Flow of charged particles
Motor Points correct answers Locations on the skin where electrical stimulation most effectively
causes specific muscles to contract
Russian
NMES correct answers What electrical current should you use to produce muscle contractions?
IFC
TENS correct answers What electrical current should you use to control pain?
HPVC correct answers What electrical current should you use to promote tissue healing?
IONTO correct answers What electrical current should you use to enhance transdermal drug
delivery?
Anything that provides feedback (mirror) correct answers What should you use to provide
electromyographic feedback?
Direct Current (DC) correct answers Not commonly used; generally uncomfortable to the patient
Continuous stream of charge particles
Operated by a battery
Iontophoresis correct answers Transcutaneous delivery of meds by an electrical current
Uses low-amp DC
Based on the principle that charges repel
Most commonly used in rehab
Alternating Current (AC) correct answers Used for pain control and muscle contraction.
Continuous, sinusoidal (having a curve), bidirectional flow of charged particles
Alternates between positive and negatively charged particles
Causes an action potential, which overrides the body/muscle belly
Operated through a wall socket
Pulsed Current (PC) correct answers Used for pain control, tissue healing, or muscle contraction
Interrupted flow of charged particles
1:5 ratio (on/off)
Current flows as a series of pulses
Monophasic correct answers Flows only in 1 direction
Tissue healing and acute edema (HVPC)
Biphasic correct answers Most common waveform used in electrotherapy
Flows back and forth
, Muscle contractions and controls pain
Interferential Current (IFC)
Pre-Modulated Current
Russian Protocol correct answers What are the 3 types of AC waveforms used clinically?
Interferential Current (IFC) correct answers Produced by interference of 2 medium frequency
AC's with slightly different frequencies
Lower Frequency = Carrier Frequency
Penetrate deeper, more comfortable (low amp. delivered through skin)
Pre-Modulated Current correct answers Produced with a single circuit and 2 electrodes
Russian Protocol correct answers Medium frequency AC with a carrier frequency of 2500 Hz
Lots of mini bursts to allow a contraction
0/5 to 2+/5 MMT for strengthening
Can make sore
1:5 ratio
DC Parameters correct answers Current flows equally throughout the stimulation
Only parameters are amplitude and total treatment time
Pulse-period when electrical current flows in any direction
Phase-period when electrical current flows in one direction
AC Parameters correct answers Pulse duration
Phase duration
Interpulse interval
Amplitude
Frequency
On and off time
Ramp up and ramp down time
Phase Duration correct answers How long a pulse lasts
Interpulse Interval correct answers Amount of time between pulses
Amplitude correct answers Magnitude of the current flow
Height of the pillar
Frequency correct answers Number of pulses per second
Higher the number = the more pillars = the more comfortable
Action Potential (AP) correct answers Basic unit of nerve communication
amplitude; duration correct answers To stimulate an action potential, an electrical current must
have sufficient ___________ and _______________.
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