Define the etiologies of sun induced skin disorders UVC small amount reaches

Define the etiologies of sun induced skin disorders

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Define the etiologies of sun-induced skin disordersUVCsmall amount reaches earthUVBsunburn radiationMost active wavelength for causing erythemaVitamin D3 source in skinCauses skin cancer, wrinkling, elastosis, collagen damage, epidermal hyperplasiaUVAphotosensitivity reaction if taking/applying photosensitizing medicationMay cause more damage to tissue than UVBAffects dermis > epidermisImmune suppression and DNA damagepremature photoaging and skin cancerUVR in tanning booths and Sunbeds>96% UVA (less likely to produce redness)Increase risk of skin cancerNo FDA regulation on amount of UVA and UVBonly ratio A:B > 5%Radiation reflectsSnowSandDry clothes70-90% of UVR penetrates cloudsRadiation PenetratesWaterWet clothestightly woven clothes the bestHigher altitudeless tree coveragemore UVR exposure**UVA penetrates glassnot UVBIf taking Photosensitive drugsapply sunscreen while driving
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Explain the pathophysiology of sun-induced skin disordersMelanomaself examinationA: asymmetric shapeB: border irregular or poorly definedC: color variation or change in colorD: diameter bigger than 6mmE: evolving/changing moleDefine the relationship between skin type and tanning historySkin type and tanning history most important patient factorAlways burn easily; tan minimallySPF 30+Swim, work outdoors, activityproduct must adherewater-resistant every 40-80minDefine the parameters of sunscreen efficacyMinimal Erythema Dose (MED)
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  • Spring '17
  • Sunscreen, sunburn, Erythema, Azithromycin macrolides

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