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.
Ultraviolet light has high enough energy to damage our skin cells, so our bodies will produce a darker pigment in our skin to prevent exposure of the deeper skin cells to the UV (we tan as a defense mechanism).