What is a Critical Care Nurse?

Critical care nursing suits people who do their best work in fast-paced, high-stakes settings. To enter the field you need to be a registered nurse with at least a two-year degree, but the qualifications go beyond a credential. This is intense work that demands sharp critical thinking, adaptability, and real compassion for patients and their families.

What does a critical care nurse do?

Critical care nurses provide intensive care, so they are often called ICU (intensive care unit) nurses. There is an important distinction, though: all ICU nurses are critical care nurses, but not all critical care nurses work in the ICU.

These nurses are trained to care for critically ill and injured patients wherever that care is needed, including burn centers, trauma centers, operating rooms, emergency departments, respiratory centers, neonatal intensive care units, and pediatric units.

"Critical care refers to the level of care required by a patient rather than where the patient is physically located," says Mary A. Stahl, MSN, RN, CCNS, CCRN-K, a clinical practice specialist and past president of the American Association of Critical-Care Nurses (AACN) board of directors. "It's all about the needs of the patient. These patients are either unstable or likely to become unstable and therefore require specialized care in terms of the frequency and type of nursing assessments, care interventions, and often, equipment needed."

General job duties

Caring for medically fragile patients means tracking details large and small. In a typical shift, a critical care nurse might monitor a ventilator, insert a catheter, run diagnostic tests, administer medications, or assess and treat an injury. Other tasks include:

• Treating wounds and injuries
• Stabilizing patients in medical emergencies
• Administering intravenous (IV) fluids
• Working with physicians, physical therapists, and other members of the care team
• Communicating with patients' family members
• Coordinating transfers to another unit or facility
• Performing administrative or managerial duties

Where you'll work and the patients you'll see

Critical care nurses care for the most severely ill, high-risk patients at every stage of life, inside and outside the ICU. These patients may be in severe respiratory distress, recovering from surgery, or managing chronic illness. You can choose to focus on an area that fits your interests, working with:

• Newborns in neonatal intensive care units
• Older adults in skilled nursing facilities
• Cardiac patients in post-surgical units
• Burn patients in trauma centers
• Critically injured patients on transport flights
• Patients in long-term acute care hospitals
• Patients in progressive care units
• Surgical patients in recovery units

Critical care nurses can also deploy to areas hit by healthcare emergencies and natural disasters, sometimes abroad.

"During a pandemic, or any crisis, nurses may be working in their assigned unit, reassigned to an area of the hospital with a greater need or working in a different hospital, or even a different city," says Stahl. "They may be registered with a disaster registry that helps deploy nurses to other places of need or may respond to a call for assistance through a professional association that connects them with areas of need."

What the work is like

Critically ill patients need constant care, so critical care nurses are always in motion. No two shifts are the same. On a given day you might stabilize victims of a car accident, intubate a patient in respiratory distress, or assess a patient with chest pains. Because the sickest patients often cannot communicate with their providers, critical care nurses frequently serve as patient advocates. They have more patient contact than almost any other provider, which puts them in the best position to catch a change in condition early.

"Nurses have the most frequent contact with the patient, are most present to see how the patient is responding to treatment, and are best able to determine when additional resources are necessary for a changing patient condition," says Stahl.

Qualities of a strong critical care nurse

• Adaptable. The environment can change in seconds.
• Tech-savvy. You'll rely on sophisticated monitoring equipment.
• Caring. You'll support patients and families through trauma and life-threatening illness.
• Collaborative. Working with physicians, nurse navigators, and the rest of the team takes a confident communicator.
• Intuitive. Many of your patients can't tell you what they need.
• Resilient. This work means difficult scenarios and tough days.

New knowledge, technology, and treatments keep arriving, and nurses have to keep pace. "This continual evolution puts increasing demands on nurses, who must stay agile in learning new information and skills and applying them to patient care," Stahl says.

How to become a critical care nurse

At minimum you must be a registered nurse (RN). That requires an Associate Degree in Nursing (ADN), usually two years, or a Bachelor of Science in Nursing (BSN), four years. Because critical care demands a specialized skill set, many hospitals prefer to hire BSN-prepared nurses.

Make sure any program and school you consider are accredited. Without accreditation, your state may not recognize the degree and employers may decline to hire you.

Subjects you'll study

Nursing programs combine liberal arts classes, nursing coursework, and clinical hours. Liberal arts coursework can include English composition, psychology, biology, chemistry, communications, sociology, human anatomy and physiology, and statistics.

Both the ADN and BSN build on that with core nursing courses, and a BSN adds advanced medical studies plus leadership and management classes. Common coursework includes microbiology and immunology, medical and surgical nursing, health assessment, family nursing, public health, psychosocial nursing, and maternal-newborn nursing.

Clinical hours

Coursework supplies the knowledge; clinical hours build the skills. These are on-the-job training hours in clinics, hospitals, and other healthcare centers, where you observe and practice clinical skills, patient care, and community relations. Most undergraduate students complete around 700 clinical hours, depending on the program.

Can you earn the degree online?

Online programs appeal to students who need flexible hours or don't live near a campus. They still require in-person clinical hours, which must be completed onsite at a hospital, lab, or clinic. That hands-on training is essential for critical care nurses, who spend most of their time with patients.

Changing careers

If you already hold a bachelor's degree in another field, an accelerated or direct-entry BSN program lets you apply your previous general education credits toward the non-nursing requirements. These programs take about two years and, like traditional BSN programs, require you to pass the licensure exam.

Licensing and certification

You'll need an RN license, which you can pursue after completing your ADN or BSN. To get licensed, pass the NCLEX-RN, the standardized exam all states use to determine readiness to practice. The National Council of State Boards of Nursing (NCSBN) has details on the NCLEX and state requirements.

Certification is optional, but it can mean higher pay and an edge in a competitive applicant pool. The Certified Critical Care Nurse (CCRN) credential is awarded by the American Association of Critical-Care Nurses (AACN). To qualify, an RN or APRN needs the required hours of direct critical care experience and a passing score on the CCRN exam. AACN also offers specialty and knowledge-professional certifications, which can support a move into teaching, nurse management, or administration.

Career and salary outlook

Critical care nurses can expect strong job prospects in a growing field. The BLS projects 5% employment growth for RNs from 2024 to 2034, faster than the average across all occupations. An aging population needing more care, plus rising demand for specialized nursing, keeps these nurses in demand. Because some patients prefer to recover at home or in residential settings, critical care nurses are also needed outside hospitals and clinics.

The BLS does not break out salaries by RN specialty, but critical care nurses earn in line with their education, experience, and degree of specialization. The median RN salary is $93,600 a year, ranging from about $66,030 for the lowest 10% of earners to $135,320 for the top 10%.

Staying current

Critical care nursing means keeping up with public health developments, continuing education and licensure requirements, and industry news. Beyond AACN, useful resources include the American Journal of Critical Care, Medscape's critical care nursing coverage, the American Association for Respiratory Care, the American Burn Association, and the Wound, Ostomy and Continence Nurses Society.

Is this the right specialty for you?

Critical care nursing fits lifelong learners who want to make a difference in patient care, often during the hardest moments of a patient's life. Emotionally resilient, energetic people with strong communication skills tend to thrive in it.

Nurses stand at the frontline of patient care, Stahl notes. "Especially in times of crisis, nurses must rely on their assessment skills to help identify patient needs," she says. "Nurses depend on their broad understanding of physiologic, psychologic, and sociologic needs to meet the patient wherever they are, provide care and reassurance, and ensure the patient's needs are met."