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Clinical Interventions > Diathermy > Flashcards

Diathermy Flashcards

1
Q

What is the most common form of diathermy?

A

short wave diathermy (SWD) - 27.12 MHz

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2
Q

definition: short wavelength from a radio frequency on the electromagnetic spectrum

A

short wave diathermy (SWD)

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3
Q

What is the least common form of diathermy used?

A

microwave diathermy (MWD)

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4
Q

definition: pulsed radio frequency waves that are delivered to a patient as a very low intensity w/o producing heat in the tissues

A

Pulsed electromagnetic fields (PEMF, PRFE)

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5
Q

definition: bursts of pulse trains that have a pre-set duration of on-time and off-time

A

pulsed shortwave diathermy (PSWD)

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6
Q

The frequency of pulsed shortwave diathermy (PSWD) is ___-___ pulses/second

A

1 to 7,000

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7
Q

(true/false) PSWD, PEMF, PRFE do produce heat

A

False (they do not)

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8
Q

definition: method where the PT is placing the patient’s body part within the oscillating electric field

A

capacitive method (electric field method)

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9
Q

Subcutaneous fat heats up (less/more) than muscle when both are exposed to SWD field

A

more

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10
Q

definition: placement of diathermy plates on each side of the body part

A

contraplanar

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11
Q

definition: placing the plates for diathermy parallel to each other on the same body surface

A

coplanar

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12
Q

definition: method where an oscillating magnetic field induces an “eddy” of currents

A

inductive method

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13
Q

definition: heating is produced through small, circular electrical oscillations

heats deeper tissues w/o causing an unsafe rise in superficial fat or skin tissue

A

inductive SWD

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14
Q

definition: heating is produced by passing the electrical current through the body between two electrodes/plates

  • heats superficial fat tissue more b/c the intensity is highest closer to the plates*
A

capacitive SWD

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15
Q

What is the most commonly used method of pulsed shortwave diathermy (PSWD)?

A

inductive method w/ drum

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16
Q

pulsed shortwave diathermy (PSWD) is (thermal/non-thermal).

A

non-thermal

17
Q

The frequency of pulsed shortwave diathermy (PSWD) is ___ to ___ bursts per second

A

1 to 1,000

18
Q

The peak pulse power of pulsed shortwave diathermy (PSWD) is ___ to ___ W

A

100-1,000

19
Q

What is the most common therapeutic goal of SWD?

A

increase tissue temperature at a greater depth than ultrasound

20
Q

What is the duration of diathermy?

A

20 minutes

21
Q

What is the frequency for diathermy with acute cases?

A

2-3 times per day

22
Q

What is the frequency of diathermy for subacute/chronic cases?

A

1 time per day OR every other day

Clinical Interventions (25 decks)

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