PT- Low Freq modalities Flashcards Preview

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Flashcards in PT- Low Freq modalities Deck (13)
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1
Q

name the 3 types of Low freq modalities

A
  1. LVDC
  2. HVDC
  3. Faradic wave current
2
Q

physio effect with 1-10Hz at low freq

A

vasoconstriction - acute

3
Q
Physio effects at each: (HVDC) 
1-10 Hz
20-40 hz
40-80 Hz
80-250 Hz
A

1-10 Hz: vasoconstriction -acute
20-40 Hz: vasodilation - chronic
40-80 Hz: M stim - chronic
80-250 Hz: analgesia - acute

4
Q

__-__ hz should be used for analgesic effects and vasoconstriction during an acute injury

A

2-5Hz

5
Q

LVDC: anophoresis vs. cathophoresis

A

anophoresis: active anode& inactive cathode
cathophoresis: active cathode, and inactive anode

“5 min rule”

6
Q

“twin peak, symmetrical monophonic” , bipolar describes what low freq modality

A

HVDC

7
Q

“galvanic monophasic” refers to what low freq modality

A

LVDC

8
Q

the “5 minute rule” is used for what modality

A

LVDC

9
Q

name the Alternating current:

____: turns on and off –> waves are the same

___: min–> to max instantly

__: causes tetany

__: square + faradic

A

sine wave : turns on and off –> waves are the same

Square wave : min–> to max instantly

faradic wave : causes tetany

hybrid : square + faradic

10
Q

What is the only AC current that has any effect on atrophied nerves ?

A

Sine wave (SWR)

11
Q

What two wave types are used with TENS

A

square and Spike

12
Q

Square vs. Spike TENS

When to use?
Irritation factor?
Lasting effects?

A

Square:
when to use: Chronic
Irritation: less
Lasting effect: long

Spike:

  • Best for pre-adjustment
  • Irritation: more
  • lasting effect: shorter
13
Q

uses for MENS (4)

A
  1. non-union bone fx
  2. shin wound
  3. replace tiss current
    4, ATP production to incr metab. and incr cellular respiration

NOT USED FOR ST