ultraviolet radiation C

ultraviolet radiation

a potion of electromagnetic spectrum above the x-ray and below visible light and unable to be seen with the human eye

UVC

a type of UV which penetrates the upper epidermis and kills bacteria, and helps the formation of vit D

UVB

a type of UV which penetrates the epidermal basal layer to cause erythemia w/o pigmentation and formation of vit D and tanning

true

UV light should be within the 100-290 nm range to penetrate the epidermis to help with killing bacteria, remove bioburden, stim epithelial migration/proliferation and stim BF

t or f

false

UV light should be within the 280-315 nm range to penetrate the epidermis to help with killing bacteria, remove bioburden, stim epithelial migration/proliferation and stim BF

t or f

angle of incidence

effective intensity of radiation on skin is dependent on the ___ on the surface where intensity will fall off around curved surfaces if not parallel

true

the UVC dose is based on the seconds the skin is exposed to the lamp and the erythema resp that occurs on intact skin

erythema

occurs post UVC due to acute inflammatory reaction several hrs post exposure including redness, blistering, and skin peeling

epithelialization

E1 of UVC helps with

granulation

E2 of UVC helps with

dec bacteria and inc granulation

E3 of UVC helps with

debridement and inc perfusion

E4 of UVC helps with

E1

the dose of UVC for wounds which is granulating, beefy red, no slough and a sloping wound edge and a depth of 1-2mm

true

if a wound is deeper than 1-2mm then it would be increased to either E2 or 3

t or f

false

if a wound is deeper than 0.5-1mm then it would be increased to either E2 or 3

t or f

E3

the dose of UVC for wounds with a yellow or grey slough surface, or infected, or produced purulent or malodourous discharge OR for wounds which is pale and vertical edges or wounds with a red base less than 1cm

E2

the dose of UVC for wounds with a base is a pale pink and has a depth of 1-2mm OR beefy red and is deeper than 2cm

E4-2E4

the dose of UVC for wounds with a surface of a dense yellow slough, necrotic debris, brown/black eschar and vertical edges

true

UVC dose is dependent on the lamp output, distance the lamp is from the skin, skin responsiveness and duration

t or f

false

UVC dose is dependent on the lamp output, size of the lamp rel to the skin, skin responsiveness and duration

t or f

true

if the lamp output, distance from skin and angle of radiation held constant the duration of exposure can alter energy dose delivered

t or f

false

if the lamp output, distance from skin and angle of radiation held constant the duration of exposure remains the same energy dose delivered

t or f

true

when treating open wounds with UVC it requires a removal of dressings and cleaned wound

t or f

true

when using UVC for open wounds the surrounding skin is treated w E1 prior to delivering UVC to the wound base (E2-2E4 depending on wound)

t or f

false

when using UVC for open wounds the wound base is first treated using E2-2E4 depending on wound

t or f

acute effects

the ___ of UVC includes inc perfusion, delayed melanin pigmentation, vit D production, bactericidal, desquamation, proliferation of keritanocytes

chronic effects

the __ of UVC includes dec skin elasticity, dry skin, vascular dilatation, hyperplasia, skin cancer

contraindicators

___ to UVC include acute skin conditions, skin damage from ionizing radiation, lupus, febrile illness, skin cancer and grafts

precautions

____ of UVC includes damage to eye, over exposure, exposures to areas not requiring it and ozone production

conjunctivitis

inflammation of the tissues over the cornea and lining of the eyelid

photokeratitis

inflammation of the cornea