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Physical Modalities > Heat and Cold therapy > Flashcards

Heat and Cold therapy Flashcards

1
Q

Which heat therapy modality has an advantage of being able to perform ROM activities during treatment

A

Fluidotherapy

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2
Q

What method of heat transfer does fluidotherapy use

A

Convection

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3
Q

What method of heat transfer does heat lamp radiation

A

Conversion

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4
Q

What modality converts sound waves to thermal energy

A

Ultrasound

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5
Q

What method of conversion heat therapy uses superficial heat

A

Infrared/heat lamps

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6
Q

The most commonly used frequency in shortwave diathermy

A

27.12 MHz

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7
Q

What’s the intensity on ultrasound prescription

A

1.2 - 1.8 W/cm2

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8
Q

4 indications for short wave diathermy

A
  1. Myalgia
  2. Muscle spasms
  3. Refractory Pelvic inflammatory disease
  4. Chronic prostatitis
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9
Q

What method of heat transfer does paraffin bath use

A

Conduction

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10
Q

What method of short wave diathermy is indicated when you want to heat more superficial muscles or joints

A

Inductive coil method

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11
Q

What modality converts radio wave energy to thermal energy

A

Short wave diathermy

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12
Q

What temperatures can result in tissue injury

A

> 113 F or < 32 F

>45 C or < 0 C

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13
Q

What method of heat transfer does shortwave diathermy use

A

Conversion

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14
Q

What method of heat transfer uses fluid circulation over surface of a body

A

Convection

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15
Q

What method of heat transfer uses direct contact between 2 bodies at different temperatures

A

Conduction

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16
Q

What nonthermal effect of us can lead to tissue disruption

A

Acoustic cavitation because of gas bubbles

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17
Q

What method of heat transfer does hydrotherapy use

A

Convection

18
Q

What are the 3 modalities used for deep heat

A

Ultrasound, short wave diathermy and microwave diathermy

19
Q

What 2 features of us allows it to be beneficial for wounds?

A

Acoustic streaming and acoustic cavitation

20
Q

What tissue is ultrasound absorbed most in? Least in?

A 
Most = Bone
Least = fat
21
Q

What is it called when heating pads cause skin mottling

A

Erythema ab igne

22
Q

Duration for ultrasound prescription

A

5-10 min per site

23
Q

What is 1 really important contraindication for short wave diathermy

A

Implanted metals/IUD

24
Q

What method of heat transfer does contrast bath use

A

Convection

25
Q

Which of the three methods of heat transfer focus on superficial heating and deep heating

A

Conduction and convection focus on superficial heating, conversion focuses on deep heating

26
Q

3 main methods of heat transfer

A

Convection, conduction, conversion

27
Q

Metabolic requirement and heat

A

For every 10 degrees increase in skin temperature, there is a 100% increase in metabolic demand

28
Q

What kind of tank is used for total body vs partial body immersion

A

Total body - hubbard tank

Partial body - whirlpool bath

29
Q

Which diathermy method penetrates tissues the deepest? Most superficial?

A

Deepest = Ultrasound

Most superficial = microwave

30
Q

What method of heat transfer uses electromagnetic radiation into heat energy

A

Conversion

31
Q

What method of short wave diathermy is indicated for subq adipose tissue and deeper joints

A

Condensor method/capacitive method

32
Q

Effect of cold on BP

A

Increase SBP and DBP

33
Q

Phonophoresis

A

Technique that uses US to drive medications through the skin by increasing cell permeability

34
Q

What method of heat transfer does ultrasound use

A

Conversion

35
Q

What nerve fibers does cold act on to decrease spasticity

A

Ia and Ib (golgi tendon organ) and II (muscle spindle)

36
Q

Why is heat therapy contraindicated in scar tissue

A

Scar tissue has decreased vascular supply and so it can’t provide good blood flow to the heat area, and since the heated area results in increase metabolic demand, this may cause ischemic necrosis

37
Q

What are 2 things that cold therapy acts on to decrease spasticity

A

Decreases Golgi tendon organ and muscle spindle activity

38
Q

What method of heat transfer uses reflex hyperemia

A

Contrast baths

39
Q

What method of heat transfer does hot water use

A

Conduction

40
Q

What is the frequency for ultrasound prescription

A

0.8 - 1.1 MHz

Physical Modalities (7 decks)

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