BIOC33H3 Lecture Notes - Bacitracin, Hand Washing, Liposuction
25 Mar 2013
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Document Summary
Health promotion activities for good skin health include asvoidance of environmental hazards, adequate rest and exercise, and proper hygiene and nutrition. Sun safety includes sun avoidance, especially during midday hours, protective clothing, and sunscreen. Actinic keratoses, basal cell carcinoma, squamous cell carcinoma, and malignant melanoma are problems associated with sun exposure. Skin cancer is the most common malignant condition. Patients should be taught to self- examine their skin monthly. The cornerstone of self-skin examination is the abcd rule. Asymmetry, border irregularity, color change/variation, and diameter of 6 mm or more. Risk factors for skin cancer include fair skin type (blonde or red hair and blue or green eyes), history of chronic sun exposure, family history of skin cancer, and exposure to tar and systemic arsenicals. Nonmelanoma skin cancers do not develop from melanocytes, as melanoma skin cancers do. Instead, they are a neoplasm of the epidermis.
