Infrared/Ultraviolet Flashcards

1
Q

uses electromagnetic energy rather than true thermotherapy using conduction for heat transfer

A

infrared

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2
Q

when using infrared place a ____ over the tx area

A

moist warm towel

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3
Q

two types of infrared

A

luminous

non lumionous

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4
Q

most commonly used infrared

A

near infrared

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5
Q

Near infrared parameters

A

depth- 5-10mm
sup temp- 110 F
Deep temp- 118 F
15-20min

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6
Q

Far infrared parameters

A

depth- 0.5-2mm
Sup temp- 114F
Deep temp- 107F
15-20min

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7
Q

Pt position for infrared

A

20in from source. Lamp at 90*

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8
Q

Only use infrared when…

A

pressure from other modalities are not tolerated

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9
Q

infrared contraindications

A
  • circulatory diseases
  • dermatitis
  • acute injury
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10
Q

infrared indications

A
  • pain
  • increase blood supply
  • mm spasm
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11
Q

non heat modality that stimulates chemical changes by absorption of electromagnetic energy

A

ultraviolet

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12
Q

UV that uses hot quartz. Causes most skin erythema

A

UVB

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13
Q

UV that uses cold quartz. Germicidal

A

UVC

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14
Q

High powered lamp, close to skin at perpendicular angle =

A

deepest penetration

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15
Q

Protective reaction of the skin

A

pigmentation

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16
Q

superficial skin thickening- 72 hrs after exposure

A

epidermal hyperplasia

17
Q

Vitamin D conversion necessary for

A
  • Ca absorption
  • Bone formation
  • Organ function
18
Q

UV indications

A
  • Psoriasis (skin disorders)

- Wound healing

19
Q

smallest UV dose producing erythema w/in 8 hrs of exposure but disappears w/in 24 hrs

A

Minimal Erythemal Dose MED

20
Q

definite redness, appears w/in 6 hrs. Lasts 1-3 days. 2.5x MED

A

1st Degree (E1)

21
Q

Electromagnetic radiation which lies between X-ray and visible light

A

Ultraviolet

22
Q

Indications for UV (2)

A
  • Psoriasis

- Wound healing

23
Q

UV contraindications (4)

A
  • skin cancer
  • tuberculosis (pulmonary)
  • fever
  • cardiac, kidney, liver disease
24
Q

UV precautions (3)

A
  • photosensitivity (meds)
  • recent X-rays
  • previous tx have not disappeared
25
Q

UV physiological effects

A
  • erythema
  • vitamin D synthesis
  • vasodilation
  • increased pigmentation
26
Q

No change in skin redness occurs in the 24 hrs after UV exposure

A

Suberythermal dose SED

27
Q

The smallest dose producing erythema within 8 hrs that disappears within 24 hrs

A

Minimal erythemal dose MED

28
Q

Definite redness with some mild desquamation appears within 6 hrs after exposure and lasts 1-3 days. 2.5x MED

A

First degree erythema E1

29
Q

Intense erythema with edema, peeling and pigmentation appears within 2 hrs after tx and is like severe sunburn. 5x MED

A

Second degree erythema E2

30
Q

Erythema with severe blistering, peeling and exudation. 10x MED

A

Third degree erythema E3

31
Q

UV parameters

A

50% MED first tx and increase 10-40% each following tx