Home health-care aides have the authority to prescribe medication

List the 4 steps for scene assessment (what you do at the very beginning) for an adult

Melanocytes and keratinocytes work together in protecting the skin from uv damage when keratinocytes a. provide the melanocyte with a protective shield against abrasion b. maintain the appropriate temperature so the product of the melanocyte will not denature c. maintain the appropriate ph in order for the melanocyte to synthesize melanin granules d. accumulate the melanin granules on their superficial portion, forming a uv-blocking pigment layer

Why is it important to know first aid/ cpr/ aed?