A variety of abbreviations exist to designate the applicable certifications, specialties and education of nurse practitioners. General Abbreviation The general abbreviation for nurse practitioners is NP. A general nurse practitioner has completed at least a bachelor degree and has a license to work as a registered nurse (RN) in her home state. Additionally, she has at least two years experience practicing as an RN and has completed a masterâs degree and additional training.
Long-term sunlight exposure is known to be associated with the development of skin cancer, skin aging, immune suppression, and eye diseases such as cataracts and macular degeneration. Short-term over-exposure is the cause of sunburn, snow blindness, and solar retinopathy.
The dark side of sun exposure. Some safe exposure to the summer sun is important to help the body make vitamin D. However, the cumulative effects of sun exposure put us at higher risk of cellular damage, early wrinkling, age spots, actinic keratoses and skin cancer -- including malignant melanoma, the most serious type.