This document provides an introduction to geriatric nursing, including definitions of key terms like gerontology, geriatrics, aging, and life expectancy. It discusses the developmental tasks and needs of elderly people, including adjusting to retirement, death of a spouse, and accepting one's own mortality. It also addresses life transitions experienced by older adults like retirement, chronic illness, relocation, and bereavement. Finally, it outlines different care environments for elderly people and ways for health professionals to help older adults and their families cope with life transitions.