Registered nurses are responsible for assessing patients, creating care plans, administering treatments, coordinating with other healthcare providers, and advocating for patients’ wellbeing. With roughly 3.4 million RNs working across the United States, it’s the largest single profession in healthcare, and the role spans far more than what most people picture.
Direct Patient Care
The most visible part of an RN’s job is hands-on clinical care. This includes performing physical exams, taking vital signs, administering medications, assisting with diagnostic tests, and operating medical equipment. RNs also spend significant time talking with patients about their symptoms and medical history, recording observations, and adjusting care based on how a patient responds to treatment.
What sets RNs apart from licensed practical nurses (LPNs) is the level of independent judgment involved. An RN doesn’t just carry out instructions. They independently assess a patient’s condition, identify both current and potential health problems, formulate a nursing diagnosis, and build a care plan around it. LPNs cannot legally perform a comprehensive initial assessment or develop a care plan on their own. The RN is the one deciding what needs to happen and in what order.
Care Coordination Across Teams
A large chunk of an RN’s workload involves connecting the dots between different providers. Nurses coordinate patient care with physicians, specialists, social workers, and therapists. They organize case review meetings, communicate changes in a treatment plan, arrange referrals to specialty services, and sometimes sit down with patients and their families alongside the physician to make sure everyone is on the same page.
In primary care settings, RNs often serve as the single point of contact for both patients and other providers. They clarify each team member’s role, negotiate responsibilities, and establish shared accountability by systematically reviewing cases with the broader care team. This coordination role requires strong organizational and communication skills, and it’s one of the reasons nurses frequently describe their job as more about managing relationships than performing procedures.
Patient Education and Advocacy
Teaching patients about their conditions is a core nursing responsibility, not an afterthought. RNs identify what a patient needs to learn, spot potential barriers to understanding (language, literacy, anxiety), develop a teaching plan, and evaluate whether the patient actually absorbed the information. This might mean explaining why a medication matters, walking a family through what to expect after surgery, or training someone to manage a chronic condition at home.
Advocacy is closely tied to education. Nurses describe this role as “being the patient’s voice,” which plays out in practical ways: speaking up when a treatment decision doesn’t seem to serve the patient’s interest, making sure patients understand what’s happening before they consent, and insisting that a patient’s rights and preferences are respected by the rest of the care team. When a patient is too sick, too scared, or too overwhelmed to ask questions or push back, the RN steps in.
Delegation and Supervision
RNs don’t work alone. They supervise LPNs, certified nursing assistants, and other support staff, and a key responsibility is deciding what tasks can safely be handed off. This decision hinges on the patient’s stability, the complexity of the task, and the training and competence of the person receiving the assignment.
Delegation isn’t a “set it and forget it” process. The RN must clearly communicate what needs to be done, provide any patient-specific details (for example, “no blood draws in the right arm”), remain available for questions, follow up once the task is complete, and evaluate the outcome. Even when a task is delegated, the RN retains overall accountability for the patient. If something goes wrong or the patient’s condition changes, the RN is the one responsible for stepping in. The National Council of State Boards of Nursing considers the ability to delegate, assign, and supervise a critical competency for every registered nurse.
Documentation and Record-Keeping
Every assessment, medication, patient response, and care plan change must be documented, and RNs carry the primary responsibility for this in most settings. Electronic health records have made this process faster in some ways and more burdensome in others. The American Nurses Association holds that these systems should be designed to support the kind of critical thinking nurses do, not just serve as data entry tools, and advocates for nurses to be involved in selecting and designing the software they use daily.
Accurate documentation protects patients by ensuring that every provider on the team has current, reliable information. It also creates a legal record of the care that was delivered. For many nurses, charting takes up a significant portion of each shift.
How Responsibilities Shift by Setting
The core framework stays the same, but day-to-day duties look very different depending on where an RN works.
In an intensive care unit, nurses typically care for just one or two patients at a time, sometimes over multiple shifts. The work is meticulous and detail-oriented: continuously monitoring vital signs, managing ventilators and multiple medications, identifying subtle changes in condition, and responding to emergencies. ICU nursing rewards people who are organized, thorough, and comfortable with high-stakes precision.
Emergency room nurses operate at the opposite tempo. They may see up to 10 patients per shift, triaging incoming cases by urgency, stabilizing patients alongside the ER team, and treating a wide range of injuries and acute conditions. The skill set here leans heavily on the ability to think quickly, stay calm under extreme pressure, and make rapid assessments with limited information.
Beyond hospitals, RNs work in outpatient clinics, schools, public health departments, home health agencies, and long-term care facilities. In each setting, the balance between hands-on clinical tasks, patient education, care coordination, and administrative work shifts considerably.
Career Outlook
Employment for registered nurses is projected to grow 5% from 2024 to 2034, which is faster than average across all occupations. About 189,100 openings are expected each year over that decade, driven by retirements, population growth, and the increasing complexity of healthcare needs. The profession is expected to add roughly 166,000 net new positions, bringing the total to over 3.5 million RNs by 2034.