electricity Flashcards
(27 cards)
T/F, dry skin decreases resistance to flow
False, it increases resistance
Galvanic current is also known as _____phasic or _____ current
mono; direct
What does biphasic or alternating current mean in terms of muscle
it means that the muscle is contracted constantly
What does pulsed or polyphasic current mean
muscle is contracted, relax period, and then contracts again
What does TENS stand for
Transcutaneous electrical nerve stimulator
What does NMES stand for
Neuromuscular electrical stimulator
Biphasic has ___ phases, ___ pulse
2;1
Monophasic has ___ phase, ___ pulse
1;1
A pulse is 1 ____ ____
wave form
A phase is 1 ____
pulse
Symmetrical waveform = same ____ and ___ in each ____ and ______
shape; size; phase; direction
Asymmetrical waveform = different ___ in each ___ and can be _____ or ______
shape; phase; balanced; unbalanced
amplitude = ____ = ____ _____
voltage; current intensity
what is pulse charge
the sum of phase charges
what is the pulse charge for symmetric wave forms
= 0
what is the pulse charge for asymmetric wave forms
> 0
A higher peak with a shorter phase is _____ comfortable
more
in monophasic current, pulse duration = ___ _____
phase duration
in biphasic current, pulse duration = ________ _____ ________
combined phase duration
pulse period =
pulse duration + interpulse interval
INC frequency = INC ___ & ____ ____
rise; decay times
as pps INC what happens?
constant contraction
> 70 pps is for ____ pain
acute
T/F 70 pps is too high to contract therefore sensation replaces pain
true
