DERMA QUIZ

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SESSION I

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1 . UV radiation spectrum of UVA is
340-420 nm
320-400 nm
320-340 nm
340-420nm
2 . UV radiation spectrum of UVB is
320-400 nm
280-420 nm
290-320 nm
290-340 nm
3 . UV radiation spectrum of UVA 1 is
400-320 nm
400-340 nm
340-320nm
420-340 nm
4 . Chronic Sun Exposure causes
"Sunburn, Photo damage,Skin cancers , Premature skin aging"
"Sunburn, Photo damage"
"Posariasis, Sunburn"
All of above
5 . Tanning means
Development of lesions after exposure to UV rays
Skin aging after exposure to UV rays.
development of perceptible pigmentation over skin after exposure to UV rays.
Icthing of skin after exposure to UV rays.
6 . Histological changes after sun exposures are
Collagen break down due to direct sun exposure & Accumulation of abnormal Elastin
Disorganized collagen fibers formation known as solar scars
Repeated production of imperfect collagen develop wrinkles
All of above
7 . Physical sunscreens act by________ the rays
absorbing
reflecting
diluting
converting
8 . MED means
Maximum Erythema Dose
Minimal Erythema Dose
Minimal European Dose
Minimum Evaluting Dose
9 . Sun Protection Factor is defines as
Time a person with sunscreen can be exposed to sunlight before getting sunburn relative to time without sunscreen
Time a person use sunscreen relative to time without sunscreen
Time the sunscreen is applied by person before getting sunburn versus sun effect
Quanity of Sunscreen appilled by a person versus the protection offered by sunscreen
10 . MED is defined as
is the maximum UV Rays required to produce the perceptible erythema (redness) on skin.
is the least amount of UV Rays required to produce the perceptible erythema (redness) on skin.
is the least time the person is exposed to UV Rays required to produce the perceptible erythema (redness) on skin.
All of above
11 . UVA/ UVB ratio is the
ratio of the absorbance in the UVA range relative to that in the UVB range
ratio of the UVA range to UVB range
ratio of the absorbance of the UVA range & UVB range
All of above
12 . Cosmetic Procedure causes the following changes in skin
Thinning of epidermis
Erythemal damage
Post procedure pigmentation
All of above
13 . UVA Protection Factor (UVA-PF) is
UVA dose that produces PPD 2 to 24 h after exposure in sunscreen protected skin / UVB dose that produces PPD 2 to 24 h after exposure in sunscreen unprotected skin
UVA dose that produces PPD 2 to 24 h after exposure in sunscreen protected skin / UVA dose that produces PPD 2 to 24 h after exposure in sunscreen unprotected skin
UVA dose that produces PPD 2 to 24 h after exposure in sunscreen unprotected skin / UVA dose that produces PPD 2 to 24 h after exposure in sunscreen protected skin
UVA & UVB dose that produces PPD 2 to 24 h after exposure in sunscreen protected skin / UVA & UVB dose that produces PPD 2 to 24 h after exposure in sunscreen unprotected skin
14 . Sunscreen can be claimed as Broad spectrum if
UVA PF should be 1/10 of SPF & Critical Wavelength = 370 nm
UVA PF should be 1/2 of SPF & Critical Wavelength = 350 nm
UVA PF should be 1/3 of SPF & Critical Wavelength ? 370 nm
UVA PF should be 6 of SPF & Critical Wavelength ? 370 nm
15 . Shadowz Silk has UVA - PF of
12
19.1
21
20.1
16 . Critical Wavelength of Shadowz Silk is
318nm
371nm
380nm
381nm
17 . UVB rays penetrate
only the epidermis
tissue
dermis
All of above
18 . UVB is responsible forSunburns & Photocarcinogenesis
Sunburns
Sunburns & Photocarcinogenesis
Sunburns
Photo aging
19 . UVA PF value demonstrate
the UVB protecting ability of Sunscreen
UVA1 to UVA ratio
the UVA protecting ability of Sunscreen
All of above
20 . Recommendations for sunscreen application
Conc of 2mg/cm2
Conc of 2mg/m2
Conc of 2mcg/cm2
Conc of 2hr/cm2