ELECTRIC STIMULATION AND HYDROTHERAPY PTAP
1240 TEST QUESTIONS AND ANSWERS
The magnitude of the current or voltage is called?
amplitude
on time
when the current is on; produces muscle contraction
off time
when the current is off; allows muscle to relax
ramp up
# of seconds it takes for current amplitude to increase from zero
ramp down
# of seconds it takes for current amplitude to decrease from maximum
amplitude
Galvantotaxis
Promotes tissue healing by attracting and activating proper cell types to the
wounded area. Cells attracted are: neutrophils, macrophages, lymphocytes, and
fibroblasts
phase duration/pulse duration (width)
The duration of one phase of a pulse, generally expressed in microseconds.
motor point
The place in a muscle where electrical stimulation will produce the greatest
contraction with the least amount of electricity, generally located over the
middle of the muscle belly.
, Deplorization
the reversal of the resting potential in excitable cell membranes, where the
inside of the cell becomes positive relative to the outside
accommodation
a transient increase in threshold to nerve excitation
what are the different waveforms?
-direct current
-alternating current
-pulsed current
Alternating Current (AC)
- direction of flow changes from positive to negative in cyclical manner
- electrodes take turns being positive and negative
monophonic currents (pulsed)
- only one phase per pulse
- current flows in one direction: remains on one side of baseline
Pulsed Current (PC)
Interrupted flow of charged particles
Current flows as a series of pulses
Iontophoresis
Delivery of a drug through the skin. Good for a local anti-inflammatory effect
1240 TEST QUESTIONS AND ANSWERS
The magnitude of the current or voltage is called?
amplitude
on time
when the current is on; produces muscle contraction
off time
when the current is off; allows muscle to relax
ramp up
# of seconds it takes for current amplitude to increase from zero
ramp down
# of seconds it takes for current amplitude to decrease from maximum
amplitude
Galvantotaxis
Promotes tissue healing by attracting and activating proper cell types to the
wounded area. Cells attracted are: neutrophils, macrophages, lymphocytes, and
fibroblasts
phase duration/pulse duration (width)
The duration of one phase of a pulse, generally expressed in microseconds.
motor point
The place in a muscle where electrical stimulation will produce the greatest
contraction with the least amount of electricity, generally located over the
middle of the muscle belly.
, Deplorization
the reversal of the resting potential in excitable cell membranes, where the
inside of the cell becomes positive relative to the outside
accommodation
a transient increase in threshold to nerve excitation
what are the different waveforms?
-direct current
-alternating current
-pulsed current
Alternating Current (AC)
- direction of flow changes from positive to negative in cyclical manner
- electrodes take turns being positive and negative
monophonic currents (pulsed)
- only one phase per pulse
- current flows in one direction: remains on one side of baseline
Pulsed Current (PC)
Interrupted flow of charged particles
Current flows as a series of pulses
Iontophoresis
Delivery of a drug through the skin. Good for a local anti-inflammatory effect
