Nursing is not one job. The word covers a certified nursing assistant working a long term care floor and a certified registered nurse anaesthetist running anaesthesia for a spinal fusion, and the distance between those two roles is larger than most people outside healthcare realise.

The structure is worth understanding properly, whether you are deciding where to start or working out what your next step should be.

The licence levels

Certified nursing assistant

A CNA works under the supervision of a licensed nurse and handles direct patient care: bathing, feeding, toileting, repositioning, transfers, vital signs, and reporting changes. Training is typically four to twelve weeks, followed by a state competency exam. Many states have no requirement beyond that.

CNAs spend more continuous time at the bedside than anyone else in the building. On a well run unit the CNA is usually the first to know a patient has changed, which is why the relationship between the nurse and the CNA determines a great deal about how safe a floor is.

Licensed practical nurse

An LPN, called an LVN in California and Texas, completes a programme of roughly twelve to eighteen months and sits the NCLEX-PN. Scope varies by state more than any other level. LPNs commonly administer medications, perform wound care, insert catheters, monitor patients and take an assignment of their own.

What LPNs generally cannot do is the initial nursing assessment, and in most states they cannot administer certain IV medications or push IV drugs. The practical effect is that acute care hospitals have moved away from LPN roles over the last two decades, while long term care, rehabilitation, correctional health, clinics and home health continue to employ large numbers of them.

Registered nurse

The RN is the centre of the profession. Two routes lead to the same licence: an associate degree in nursing, usually two years, or a bachelor of science in nursing, usually four. Both sit the NCLEX-RN and both produce an RN.

They are not treated identically by employers. Magnet designated hospitals and many large systems either require a BSN or require an ADN nurse to complete one within a set period after hire. RN to BSN bridge programmes exist specifically for this, are widely available online, and are frequently subsidised by employers. If you are entering the field and can afford the extra time, the BSN removes a barrier you would otherwise hit later.

Advanced practice registered nurse

APRN covers four distinct roles, all requiring a master's degree at minimum and increasingly a doctorate.

  • Nurse practitioner. Assesses, diagnoses, orders and interprets tests, and prescribes. Practice authority varies by state, from full independent practice to required physician collaboration.
  • Certified registered nurse anaesthetist. Administers anaesthesia. Requires substantial critical care experience before entry, and is consistently the highest paid nursing role in the United States.
  • Certified nurse midwife. Manages pregnancy, birth and postpartum care, and often provides general well woman care.
  • Clinical nurse specialist. Expert practice in a specialty, focused on improving outcomes at unit and system level rather than carrying a caseload.

Specialties within RN practice

Most of what people mean by types of nurses is really specialty rather than licence level. A few that shape a career in different directions:

Medical surgical. The largest specialty and the one most nurses start in. Broad exposure, high patient counts, and the best possible foundation for going anywhere else.

Critical care. ICU, MICU, SICU, CVICU. One or two patients, extremely high acuity, ventilators, drips, continuous monitoring. Critical care experience is the gateway to CRNA school, flight nursing and most rapid response roles.

Emergency. Undifferentiated patients, unpredictable volume, everything from a sore throat to a multi vehicle trauma. Requires fast triage judgement more than depth in any one area.

Perioperative. Circulating and scrub roles in the operating room. A distinct skill set that does not transfer easily in or out, and which many nurses find is either an immediate fit or not at all.

Labour and delivery. Two patients at once and a normal physiological process that can become an emergency in ninety seconds. Consistently one of the harder specialties to staff.

NICU and paediatrics. Specialised assessment, weight based dosing, and a large family communication component.

Oncology, dialysis, psychiatric, correctional, school, occupational, hospice, home health, case management, informatics. All real career destinations, several of them with far better hours than hospital bedside work, and all routinely overlooked by nurses who assume the choice is limited to floors within a hospital.

How people actually move

The path is less rigid than the licence structure suggests. Common moves:

CNA to LPN to RN is a well worn route, and working as a CNA while in nursing school is one of the better preparations for the first year on the floor.

Med-surg to a specialty usually takes twelve to twenty four months of experience. Some units will take a new graduate directly into ICU or ED through a residency programme, and the quality of that residency matters enormously.

Bedside to advanced practice requires the graduate degree and, for CRNA, a hard prerequisite of critical care hours.

Bedside to something else entirely is the move that gets discussed least and happens most. Informatics, quality, case management, education, and clinical roles at device and pharmaceutical companies all recruit experienced nurses and none of them require night shifts.

Where agency work fits

Travel and per diem work sits across all of this rather than being a separate career. RNs, LPNs, CNAs and allied health professionals all take contracts. What changes is how quickly you can move between specialties, because agency work generally requires you to already be competent in the specialty rather than training you into it.

That cuts both ways. It is a poor route into a new specialty, and an excellent route to work in a specialty you already know at better rates, in more places, with more control over your schedule. Nurses who want to try a different setting without committing usually do it through a thirteen week contract, which is long enough to know and short enough to leave. If that is where you are, our piece on what travel nursing involves is the place to start.

Choosing

The useful question is not which type of nurse is best. It is which set of daily conditions you can sustain. Some people need the pace of an emergency department and go flat in a clinic. Some need one or two patients they can know thoroughly and find med-surg unbearable. Some want predictable hours far more than they want acuity.

Those are preferences rather than rankings, and the profession is broad enough that almost all of them have somewhere to go.

Common questions

What is the difference between an LPN and an RN?

An LPN completes roughly twelve to eighteen months of training and sits the NCLEX-PN. An RN completes a two year associate or four year bachelor degree and sits the NCLEX-RN. LPNs generally cannot perform the initial nursing assessment and in most states cannot push IV medications. Scope varies by state more at the LPN level than any other.

Is an ADN or a BSN better?

Both produce the same RN licence, but employers do not treat them identically. Magnet designated hospitals and many large systems require a BSN or require completion within a set period after hire. RN to BSN bridge programmes are widely available and often employer funded.

What are the four APRN roles?

Nurse practitioner, certified registered nurse anaesthetist, certified nurse midwife and clinical nurse specialist. All require a master's degree at minimum and increasingly a doctorate. CRNA additionally requires substantial critical care experience before entry.

Which nursing specialty should I start in?

Medical surgical is the most common starting point and gives the broadest foundation for moving anywhere else. Some units take new graduates directly into ICU or emergency through a residency, where the quality of that residency matters enormously.

Can I use travel nursing to change specialty?

Generally no. Agency work requires you to already be competent, because facilities pay contract rates for someone who needs two days of orientation rather than eight weeks. Change specialty as a permanent hire with a proper residency, then travel in it.

PNG Solutions is a healthcare staffing agency in Atlanta placing nurses and allied health professionals nationwide. If you want to talk to a recruiter, call 470 713 0689 or send us a note.