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Ortho > Estim for quiz > Flashcards

Estim for quiz Flashcards

1
Q

What can AC be used for?(3)

A

MM strengthening (contraction)
Pain control
Tissue healing
(most often used for Estim)

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2
Q

Intefferential current uses how many electrodes?

A

4 electrodes

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3
Q

IF premod uses how many electrodes?

A

2 electrodes

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4
Q

DC is?

A

A continuous electrical flow of charged particles.

Most commonly used in ionophoresis to stimulate contractions in mm)

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5
Q

AC is?

A

Continuous bidirectional flow of charged particles.

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6
Q

EMS?

A

Electrical muscle stimulation.

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7
Q

FES?

A

Functional electrical stimulation

Electrical currents used to facilitate contractions for functional activities.

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8
Q

TENS. Which nerve fibers are effected, what theory is it based on?

A

Transcutaneous electrical nerve srimulation
conducted through the skin to eleviate pain.
Uses the gate theory.
A-delta (small myelinated) nerve fibers and C fibers (small unmyelinated), activating A-beta nerves o block pain transmition.

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9
Q

Tens uses ____ duration, ____ freq. pulses?

A

Sort, high

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10
Q

Russian protocol?

A

Med FQ, AC 10/10 50 bursts/second. For mm contraction.

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11
Q

Phase duration?

A

Duration of one phase of a pulse. Expressed in microseconds.

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12
Q

Pulse duration?

A

Time from the beginning of the 1sr phase of a pulse to the end of the last.

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13
Q

Impedance?

A

Total FQ dependent opposition to current flow. Measured in ohms.
Biologically: Ratio of voltage to current.

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14
Q

AC can be used for?(3)

A

MM strengthening (contraction)
Pain control
Tissue healing
(most often used for Estim)

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15
Q

Side effects of Estim?

A

Burns,skin irritation/inflammation.

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16
Q

Precautions for Estim?(4)

A

Cardiac disease
Impaired mentation/sensation
Malignant tumors
Skin irritation/open wounds

17
Q

Contraindications for Estim?(6)

A 
Demand pacemaker
Unstable eurythmia
Electrodes
Placement over the carotid sinus
Areas of thrombosis or thrombophelbitis
Pregnancy (over or around abdomen
18
Q

Electrode placement?

A

Smoothly against skin 0 wrinkles/gaps
o directly over bony prominences
0 over highly contoured surface

19
Q

Which parameters can be adjusted?(5)

A 
Pulse/phase duration
Amplitude
On/Off time
Ramp
Pulse type
20
Q

What do you document about Estim?(6)

A
  1. Area
  2. Position
  3. Parameters
  4. Placement
  5. Duration
  6. Response
21
Q

Placing electrodes further apart has what effect?

A

The current goes deeper

22
Q

When does depolarization of a cell membrane occur?

A

+30mV (millivolts)

23
Q

Can a cell’s action potential be activated after depolarization?

A

No, it will be in the absolute refractory period; unless a greater than usual stimulus is present (relative refractory period.

24
Q

HVPC (high voltage pulsed current) is used for?

A

Wound healing

25
Q

What is the voltage parameter for HVPC?

A

60-90

26
Q 
HVPC parameters? (5)
Pulse dur
FQ
on:off
Amp
Time
A
  1. Pulse dur=40-100 US (usually preset)
  2. Fq=60-125pps
  3. on:off= Continuous
  4. Amp=enough for comfortable sensation 0 motor response
  5. Time=45-60 mins 5 days/week
27
Q

What can cause impedance in Estim?(2)

A
  1. Hair

2. Dry skin

28
Q

In wound healing the negative electrode should be used for ________ or ________ wounds and the positive for wounds without ________, and without ____________ in the _________ stage.

A

Inflamed, infected

without inflammation, proliferative

29
Q

What current is used for wound healing?

A

High-volt pulsed current HVPC 60-90V

30
Q

How long is Estim applied for wound healing? For how many days/week?

A

45-60 mins, 5 days

31
Q

What current is used for edema d/t inflammation?

A

negative polarity HVPC, negative electrode over the area, positive an adjacent area

32
Q

Edema d/t lack of mm contraction?

A

Russian/biphasic, on mm near veins draining the area

33
Q

What current is used for iontophoresis?

A

low-amp DC

Ortho (23 decks)

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