PTAP 1240- Electrical Stimulation. Exam
2025 Questions and Answers
Electrical current - ANS flow of charged particles
motor points - ANS locations of the skin where electrical stimulation most effectively causes
muscles to contract
clinical applications for e-stim - ANS -produce muscle contractions
-controlling pain
-promoting tissue healing
-enhancing transdermal drug delivery
-providing EMG biofeedback
current - ANS rate of flow; directed flow of charge from one place to another
voltage - ANS -driving force; measure of electromotive force/electrical potential difference
-electrons will only flow between 2 points when there is a difference in the quantity
-measured in volts
resistance - ANS -impedance; describes the ability of a material to oppose the flow of ions
through it
Pg. 1 Copyright © 2025 Jasonmcconell. ALL RIGHTS RESERVED.
, -measured in ohms
ohm's law - ANS -amount of current that flows is equal to the amount of force divided by the
resistance
-the greater the resistance the less current flows
capacitance - ANS ability to store change in an electric field and oppose change in the
current flow
impedance - ANS -opposition to current flow in the body
- ex. adipose tissue has a high impedance
alternating current (AC) - ANS -continuous, sinusodial, biodirectional flow of charged
particles
-each electrode is positive for once phase and the negative as the current reverses
how is alternating current most frequently used? - ANS in a modulated form as burst or time-
modulated
what is alternating current (AC) used for? - ANS -pain control
-muscle contraction
what are the different waveforms? - ANS -direct current
-alternating current
-pulsed current
direct currect (DC) - ANS -continuous stream of charged particles flowing in one direction
from anode (positive electrode) to cathode (negative electrode)
Pg. 2 Copyright © 2025 Jasonmcconell. ALL RIGHTS RESERVED.
2025 Questions and Answers
Electrical current - ANS flow of charged particles
motor points - ANS locations of the skin where electrical stimulation most effectively causes
muscles to contract
clinical applications for e-stim - ANS -produce muscle contractions
-controlling pain
-promoting tissue healing
-enhancing transdermal drug delivery
-providing EMG biofeedback
current - ANS rate of flow; directed flow of charge from one place to another
voltage - ANS -driving force; measure of electromotive force/electrical potential difference
-electrons will only flow between 2 points when there is a difference in the quantity
-measured in volts
resistance - ANS -impedance; describes the ability of a material to oppose the flow of ions
through it
Pg. 1 Copyright © 2025 Jasonmcconell. ALL RIGHTS RESERVED.
, -measured in ohms
ohm's law - ANS -amount of current that flows is equal to the amount of force divided by the
resistance
-the greater the resistance the less current flows
capacitance - ANS ability to store change in an electric field and oppose change in the
current flow
impedance - ANS -opposition to current flow in the body
- ex. adipose tissue has a high impedance
alternating current (AC) - ANS -continuous, sinusodial, biodirectional flow of charged
particles
-each electrode is positive for once phase and the negative as the current reverses
how is alternating current most frequently used? - ANS in a modulated form as burst or time-
modulated
what is alternating current (AC) used for? - ANS -pain control
-muscle contraction
what are the different waveforms? - ANS -direct current
-alternating current
-pulsed current
direct currect (DC) - ANS -continuous stream of charged particles flowing in one direction
from anode (positive electrode) to cathode (negative electrode)
Pg. 2 Copyright © 2025 Jasonmcconell. ALL RIGHTS RESERVED.
