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Passive Care > The physiotherapist is right: Easter Edition (CH14) > Flashcards

The physiotherapist is right: Easter Edition (CH14) Flashcards

1
Q

What is TENS?

A

Transcutaneous electrical nerve stimulation

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2
Q

How is TENS delivered?

A

Biphasic pulsed current

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3
Q

What is the clinical rationale for TENS?

A

Pain management

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4
Q

How would you describe TENS waveform?

A

Biphasic, rectangular, symmetric

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5
Q

What is the advantage of symmetric waveform?

A

It prevents accumulation of electrical charges reducing agitation

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6
Q

What is the nature of A-beta fibers?

A

Mechanosensitive

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7
Q

What is the nature of A-delta fibers?

A

Nociception

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8
Q

What is the nature of C fibers?

A

Nociception

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9
Q

How does the pain gate close?

A

When large fibers activate, inhibitory neurons activate in the substantia gelatinosa, they inhibit T-cells or pain transmitting cells.

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10
Q

What settings allow for targetting of certain fibers?

A

Amplitude and pulse duration

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11
Q

TENS targeted at large diameter sensory fibers is called:

A

Sensory-level stimulation

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12
Q

TENS targeted at larger fibers that can elicit painless muscle contraction is called:

A

Motor-level stimulation

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13
Q

TENS targeted at smaller fibers with even higher amplitude and longer pulse durations is called:

A

Noxious-level stimulation

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14
Q

What is the purpose of Noxious-level stimulation?

A

Activation of the opiate system

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15
Q

When endogenous opiates are secreted how does this affect T-cells (pain transmitting, not the immune ones)?

A

It starts a negative feed back loop that ends with inhibition of said T-cells

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16
Q

Conventional mode doses operate at what level, how long does analgesia last?

A

Sensory level, relatively short

17
Q

A low frequency long duration mode, that targets A-beta and Alpha motor fibers, simulates what other type of therapy?

A

Acupuncture

18
Q

Delivery of relatively long, high frequency and amplitude that targets all fibers is called?

A

Brief-Intense mode

19
Q

How long does analgesia from brief-intense mode last?

A

Relatively long compared to other modes

20
Q

Delivery of a burst of pulses aimed at a-beta and alpha motor fibers with low burst frequency describes what?

A

Burst mode

21
Q

What is modulation mode?

A

A randomization of pulse duration, current amplitude, and frequency. This prevents habituation to electrical input

Passive Care (5 decks)

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