Nurses are the healthcare professionals you interact with most during any medical visit or hospital stay. They deliver hands-on patient care, administer medications, monitor your condition, coordinate with doctors, and serve as your primary point of contact throughout treatment. What a nurse actually does day to day depends on their license level, their specialty, and where they work.
Core Clinical Responsibilities
At the bedside, a registered nurse’s job centers on keeping patients safe, comfortable, and progressing toward recovery. That starts with checking vital signs like blood pressure, heart rate, temperature, and oxygen levels, then documenting any changes. Nurses administer medications (oral, injected, and intravenous), change wound dressings, insert catheters, draw blood, and start IV lines. They also perform diagnostic tasks like reading cardiac monitors or interpreting preliminary lab results to flag concerns for physicians.
Beyond the physical tasks, nurses spend a significant portion of their time on documentation. Every observation about a patient’s condition, every medication given, and every conversation with a family member gets recorded in an electronic health record. This charting isn’t just paperwork. It’s a legal record that follows the patient across providers and ensures the next nurse or doctor on shift knows exactly what happened and what to watch for. Thorough documentation also protects patients in case of medication errors or disputes about care decisions.
Patient Education and Advocacy
Nurses are often the ones who translate a doctor’s instructions into language you can actually understand. After a diagnosis or procedure, they walk you through what to expect at home: how to care for an incision, when to take new medications, what warning signs should prompt a return visit. They teach patients with chronic conditions like diabetes how to monitor blood sugar and adjust their routines.
Advocacy is a less visible but equally important part of the role. Nurses speak up when they notice a patient’s pain isn’t being managed, when a treatment plan needs adjusting, or when a patient feels too intimidated to ask questions. They coordinate between specialists, physical therapists, social workers, and family members to make sure nothing falls through the cracks during complex care.
Different Nursing Levels, Different Scope
Not all nurses have the same authority. The profession has a clear hierarchy based on education and licensure, and each level comes with different responsibilities.
- Certified Nursing Assistants (CNAs) handle the most basic patient care: bathing, feeding, repositioning, and recording vital signs. They work under the supervision of nurses with higher credentials.
- Licensed Practical Nurses (LPNs) provide direct patient care, monitor health status, update records, and administer treatments. They assist registered nurses and physicians but generally cannot perform the full range of clinical tasks an RN handles.
- Registered Nurses (RNs) have a broader scope that includes administering treatments, performing diagnostics, developing care plans, and making clinical judgments about patient needs. Most hospital nursing positions require RN-level licensure.
- Advanced Practice Registered Nurses (APRNs) operate at the top of the nursing hierarchy. Nurse practitioners, for example, can prescribe medications including antibiotics and controlled substances in all 50 states. In roughly half of states, they have full practice authority and can run their own clinics, functioning much like a primary care physician.
Psychiatric nurse practitioners can perform psychiatric assessments, diagnose mental health conditions, and prescribe medication. Women’s health nurse practitioners prescribe contraceptives, assess fertility, and work alongside OB-GYNs. These advanced roles require graduate-level education on top of RN experience.
Hospital Specialties Shape Daily Work
A nurse’s day looks dramatically different depending on which unit they work in. Emergency room nurses triage incoming patients by urgency, stabilize trauma victims, give stitches and sutures, set broken bones, perform intubations, and start IV lines. The pace is fast and unpredictable, with patients cycling through quickly. Once a patient is stable, the ER nurse handles the transfer to another department.
Intensive care unit nurses work with the sickest patients over longer stretches. Their focus is continuous monitoring: tracking small changes in condition, adjusting treatment doses, responding to medical emergencies, and delivering ongoing updates to doctors and family members. ICU nurses also create detailed care plans for recovery, which requires deep knowledge of how critically ill patients progress. The patient-to-nurse ratio in an ICU is typically much lower than on a general floor, sometimes just one or two patients per nurse, because the level of attention required is so high.
Other hospital specialties include labor and delivery nurses who support patients through childbirth, operating room nurses who assist during surgery and manage sterile environments, and oncology nurses who administer chemotherapy and help patients manage side effects over months of treatment.
Nursing Outside the Hospital
Millions of nurses work in settings that look nothing like a hospital ward. School nurses manage the health of hundreds of students at a time. They screen for vision and hearing problems, monitor scoliosis, administer medications, and manage chronic conditions using the same clinical tools found in hospitals: catheters, nebulizers, insulin pumps, and monitors. They also run immunization programs, develop emergency preparedness plans, and educate students on topics like substance use. School nurses are often the first adults to identify signs of abuse, depression, or suicidal thoughts in children.
Home health nurses visit patients recovering from surgery or living with chronic illness in their own homes. They check wound healing, adjust medications, draw labs, and teach family caregivers how to manage complex medical equipment. Public health nurses work at the community level, running vaccination drives, tracking disease outbreaks, and connecting underserved populations with care. Occupational health nurses work inside corporations, handling workplace injuries and wellness programs. Nurses also staff urgent care clinics, assisted living facilities, insurance companies, and telehealth platforms.
Pay and Job Outlook
The median annual salary for registered nurses was $93,600 as of May 2024, according to the Bureau of Labor Statistics. Pay varies widely by specialty, location, and experience. Nurses in metropolitan areas and those working in critical care, anesthesia, or travel nursing roles typically earn well above that median.
Employment for registered nurses is projected to grow 5 percent from 2024 to 2034, faster than the average for all occupations. An aging population, rising rates of chronic disease, and ongoing retirements within the profession are driving steady demand. Nurses with bachelor’s degrees and specialized certifications generally have the strongest job prospects.