Why do nurses

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Last updated: April 8, 2026

Quick Answer: Nurses are essential healthcare professionals who provide direct patient care, coordinate treatment plans, and advocate for patients' needs. According to the U.S. Bureau of Labor Statistics, there were approximately 3.1 million registered nurses employed in the United States in 2022, with employment projected to grow 6% from 2022 to 2032. The modern nursing profession was formalized by Florence Nightingale during the Crimean War (1853-1856), who established the first professional nursing school at St. Thomas' Hospital in London in 1860. Today, nurses make up the largest component of the healthcare workforce, with the World Health Organization reporting that nurses and midwives constitute about 50% of the global health workforce.

Key Facts

Overview

Nursing is a healthcare profession focused on the care of individuals, families, and communities to help them attain, maintain, or recover optimal health and quality of life. The modern nursing profession traces its origins to Florence Nightingale, who revolutionized healthcare during the Crimean War (1853-1856) by implementing sanitation practices that dramatically reduced mortality rates. In 1860, she established the first professional nursing school at St. Thomas' Hospital in London, creating the foundation for nursing education. The profession expanded significantly during World War I and World War II, with nurses serving in military hospitals and field stations. Today, nursing has evolved into a diverse field with multiple specialties including critical care, pediatrics, oncology, and psychiatric nursing. The American Nurses Association was founded in 1896, and nursing licensure became standardized in the early 20th century, with all U.S. states requiring licensure by 1923.

How It Works

Nurses work through a systematic process called the nursing process, which includes assessment, diagnosis, planning, implementation, and evaluation. First, nurses assess patients by collecting data through physical examinations, medical history reviews, and diagnostic tests. Based on this assessment, they identify actual or potential health problems and establish nursing diagnoses. Next, nurses develop individualized care plans with specific goals and interventions, which may include administering medications, performing procedures, providing education, or coordinating with other healthcare providers. Implementation involves carrying out the planned interventions while continuously monitoring patient responses. Finally, nurses evaluate the effectiveness of care and modify plans as needed. This evidence-based approach ensures comprehensive patient care across various settings including hospitals, clinics, schools, and homes. Nurses also utilize critical thinking skills, clinical judgment, and technological tools like electronic health records to optimize patient outcomes.

Why It Matters

Nurses are crucial to healthcare systems worldwide, serving as the primary point of contact for patients and playing a vital role in disease prevention, health promotion, and chronic disease management. Research shows that higher nurse staffing levels are associated with better patient outcomes, including reduced mortality rates and fewer hospital-acquired infections. During the COVID-19 pandemic, nurses were on the front lines, providing critical care while facing unprecedented challenges. Beyond clinical settings, nurses contribute to public health initiatives, disaster response, and health policy development. The nursing shortage, projected to reach over 1 million vacancies in the U.S. by 2030 according to the American Nurses Association, highlights the urgent need to support and expand the nursing workforce to ensure accessible, quality healthcare for all populations.

Sources

  1. Wikipedia - NursingCC-BY-SA-4.0
  2. U.S. Bureau of Labor Statistics - Registered NursesPublic Domain
  3. WHO - Nursing and MidwiferyCC BY-NC-SA 3.0 IGO

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