Ultraviolet therapy Flashcards
1
Q
what is ultraviolet radiation
A
electromagnetic radiation between x-rays and visible light
2
Q
what is ultraviolet therapy used for?
A
treatment of dermatoses
3
Q
phototherapy
A
use of artificial UV light for therapeutic purposes
4
Q
photochemical effect
A
use of artificial UV light with a chemical photozensitizing agent for therapeutic purposes
5
Q
what are the 3 types of ultraviolet light?
A
UVA
UVB
UVC
6
Q
UVA
A
declining use, carcinogenic
7
Q
UVB
A
declining use, less cancer risk
8
Q
UVC
A
photogermicidal, however not commonly used
9
Q
what are the physiologic effects of UV?
A
superficial alters cell biochemistry andmetabolism may causecell damage and death inflammatory reaction increased capillary permeablility
10
Q
minimal erythema dose
A
faint redness 24 hours after treatment
11
Q
what are the established clinical indications
A
psoriasis
atopic dermatits
vitiligo
mycosis fungidoes
12
Q
pending clinical indications
A
infections lichen planus puritis chronic urticaria seborrheic dermatits nodular purigo polymorphic eruption localized scleroderma pressure ulcers
13
Q
contraindicatiosn
A
over eye malignant skin history of melanoma SLE, porphyrias, pellagra sarcoidosis, herpes simplex active tuberculosis kidney, cardiac and liver diseases hyperthyroidism diabetes mellitus acute eczema or dermatits=is
