Passive Care - Ultraviolet Flashcards

1
Q

Ultraviolet: Action

A

Thermal
Photochemical
Germicidal
Antifungal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Ultraviolet: Results

A

Vasodilation
Bacteriocidal
Phototaxis
Erythema - local (redness of skin caused by congestion of capillaries) due to the release of histamine (too much causes erythema ab igne)
Increases Vitamin D Synthesis (increase calcium)
Improves skin and muscle tone, elasticity, secretory functions
Stimulates metabolism
Increases reticulocytes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Ultraviolet: Indications

A

Skin Conditions: fungal, herpes zoster (vesicles), dematological conditions, burns, psoriasis, carbuncles, wounds, decubitus ulcers

Bone Conditions: rickets, osteomalacia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Ultraviolet: Contraindications

A
Hemorrhage
Vascular Disease
Suppurative Lesions
Tetracycline 
SLE
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Ultraviolet: Penetration

A

1-2 millimeters (superficial)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Ultraviolet: Frequency

A

High

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Ultraviolet: Wavelength

A
Short Wave (far UV)
Long Wave (near UV)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Ultraviolet: Types of UV devices

A
  1. Hot Quartz: mercury helium gases, kromayer lamp
  2. Cold Quartz: neon and mercury
  3. Orificial: sore throats, cervicitis, 10-15 seconds (goggles)
  4. Wood’s Lamp: aka black light, UV light filtered through nickel oxide glass used to diagnose fungal infections (tine)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Erythema Patch Test aka Sleeve

A
  1. Expose patient forearm
  2. Cut five penny size holes in manilla envelope
  3. Cover arm with manilla envelope
  4. 30 - 36 inches from lamp, uncover holes successively at 5 second intervals starting at 15-30 seconds
  5. Start treatment at time which produces a mild erythema (MED)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Erythema

A
SED = sub erythemal dose
MED = minimal erythemal dose (starting point for treatment)
1 ED = red desquamation
2 ED = blister desquamation
3 ED = blister, char, desquamation
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Erythema Related To:

A
  1. Patient Sensitivity
  2. Intensity (vs) Distance (inverse square law)
  3. Angle of Radiation (cosine law)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Further Treatment:

A
  1. As patient tolerance increases, increase duration by 15 sec/tx to a max three minutes
  2. When this maximum has been reached, decrease the distance by two inches per treatment, approaching no loser than 18 inches
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What treatment do you start with?

A

MED

minimal erythemal dose

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the maximum treatment?

A

3 minutes at 18 inches

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the difference between UV and Infrared?

A

Infrared does NOT have photochemical, germicidal or anti fungal properties
With UV only the patient wears glasses, with Infrared both patient and doctor wear glasses

How well did you know this?
1
Not at all
2
3
4
5
Perfectly