RN vs LPN vs CNA: Roles, Salaries, and When You Need Each in 2026

What Each Nursing Role Actually Does

The difference between RN, LPN, and CNA isn’t just title prestige — it’s a legally-enforced scope of practice that determines what clinical tasks each role can perform. Staffing decisions need to start from scope, not from wage.

Certified Nursing Assistant (CNA). CNAs handle activities of daily living and basic patient care under supervision. Core tasks: bathing, dressing, feeding, mobility assistance, vital signs, patient observation and reporting, bed-making, and toileting. CNAs cannot administer medications in most states, cannot perform assessments, and cannot document beyond observation. They are the patient-facing backbone of long-term care and the essential support layer in acute care.

Licensed Practical Nurse (LPN/LVN). LPNs have everything CNAs have plus a licensed clinical scope: oral, topical, and intramuscular medication administration, wound care and dressing changes, specimen collection, tracheostomy care, and supervised IV maintenance (state-dependent). LPNs can document patient status and teach basic patient education, but cannot perform full nursing assessments, administer IV push medications, or supervise RN-level care planning.

Registered Nurse (RN). RNs have the broadest scope — everything LPNs do plus comprehensive patient assessments, care planning, IV push medication administration, blood product administration, triage decisions, delegation to LPNs and CNAs, and patient and family education at a deep clinical level. RNs with a BSN have identical licensure but often get priority for leadership, ICU, ER, and specialty roles due to the broader educational foundation.

Education and Licensing Pathway

The nursing roles aren’t interchangeable, but they are climbable. Many CNAs bridge to LPN, and many LPNs bridge to RN through accelerated programs. Understanding the education ladder matters for two reasons: it tells you what you’re paying for, and it tells you where to recruit.

Each step is a separate licensing track with its own state-administered exam: CNAs take a state competency exam, LPNs take the NCLEX-PN, and RNs take the NCLEX-RN. NPs and CRNAs require an additional master’s or doctorate plus specialty board certification.

The Real Cost of Each Role in 2026

Base salary is where most people stop comparing. The full story requires adding benefits, taxes, and employer costs, which run roughly 30% on top of base pay. Then there’s the recruiting and replacement cost, which amortizes over each employee’s tenure.

Typical 2026 fully-loaded costs per FTE for direct-hire positions in a mid-cost US metro:

• CNA: Base $32,000-$42,000 + 30% load = $42,000-$55,000 per year. Contract (agency) bill rate: $20-$25/hour.
• LPN: Base $52,000-$65,000 + 30% load = $68,000-$84,500 per year. Contract bill rate: $32-$40/hour.
• RN (ADN): Base $75,000-$85,000 + 30% load = $97,500-$110,500 per year. Contract bill rate: $42-$55/hour.
• RN (BSN) / specialty: Base $85,000-$100,000 + 30% load = $110,500-$130,000 per year. Contract bill rate: $50-$70/hour.
• NP: Base $115,000-$140,000 + 30% load = $150,000-$182,000 per year. Contract bill rate: $85-$120/hour.

Urban markets (NYC, SF, Boston, LA) can run 20-40% above these ranges. Rural markets can run 10-20% below but often require housing or relocation incentives that erode that savings.

The Care Team Staffing Model: Why Staffing Mix Matters

The instinctive staffing move for many health systems is to hire as many RNs as possible, on the theory that broader scope means better care. The math tells a different story. For most unit types, a care-team model with the right mix of RN + LPN + CNA delivers equivalent outcomes at 30-40% lower labor cost than all-RN staffing.

Consider a typical med-surg or long-term care unit staffed for 30 patients. Two models for comparison:

All-RN model: 6 RNs per shift. Annual cost: 6 × $110,500 = $663,000 in base loaded cost, plus benefits overhead, shift differentials, and backfill for leave — typically $720,000-$790,000 total annually for one shift.

Care-team model: 1 RN + 2 LPNs + 3 CNAs. Annual cost: $110,500 + (2 × $68,000) + (3 × $42,000) = $372,500 in base loaded cost, roughly $420,000-$450,000 fully loaded. Savings: ~$300,000-$340,000 per shift per year.

The math scales dramatically across an organization. A 120-bed facility running care-team staffing across 4 shifts saves roughly $1.2-1.4 million per year in labor costs versus all-RN. The critical caveat: care-team staffing only works if the RN is delegating effectively, the LPNs are operating at the top of their scope, and the CNAs have clear accountability. Done poorly, the RN ends up doing LPN work anyway and the savings evaporate.

When to Hire Each Role

The right role depends on the setting and the clinical need, not the budget target. Some settings require more RN coverage for regulatory or liability reasons regardless of cost.

Hire CNAs when: Long-term care (skilled nursing facilities, assisted living, memory care) where ADL support is the dominant need. Home health aide roles. Hospital float roles for patient transport and sitter duty. Any setting where the bulk of the work is direct support rather than clinical intervention.

Hire LPNs when: Long-term care medication administration and wound care rounds. Outpatient clinics and physician offices. Post-acute care, rehabilitation, and skilled nursing. Stable med-surg hospital units with good RN supervision. School nursing and corrections nursing. Settings where medication management and basic clinical care are the dominant needs and the RN assessment frequency is low.

Hire RNs when: Acute care (ICU, ER, PACU, L&D, step-down, cardiac cath, OR). Specialty clinics and infusion centers. Any setting where comprehensive patient assessments, complex medication administration (IV push, blood products, chemotherapy), or clinical judgment calls happen routinely. Supervisory roles anywhere in the care continuum.

Hire NPs when: Primary care practices expanding capacity. Specialty clinics where billable provider hours are the bottleneck. Hospital inpatient services with rounding needs. Any clinical setting where autonomous prescribing authority and diagnosis capability reduce physician workload and improve access.

The Cost of Getting the Staff Mix Wrong

The two most common staffing mistakes in nursing are opposite failures with similar root causes.

Over-credentialing: Hiring all RNs in a setting that doesn’t need full RN scope. Common in settings where leadership defaults to "more nursing is better nursing." The cost is wasted labor dollars (30-40% premium over care-team model) and often RN dissatisfaction — registered nurses with 4-year degrees doing LPN work report high burnout and turnover.

Under-credentialing: Trying to cover acute-care shifts with too many LPNs and CNAs relative to the clinical acuity. The cost is patient safety incidents, missed assessments, medication errors, and regulatory exposure. In acute care, under-credentialing often results in RNs being pulled into tasks outside their core scope (patient transport, ADLs) because the CNA-to-patient ratio is too high, which degrades the RN’s ability to do RN work.

The fix for both is the same: staff to the clinical acuity of the unit, not to budget ceilings or tradition. According to the Bureau of Labor Statistics, projected nursing demand continues to outpace supply through 2032 — so getting the mix right is increasingly about efficiency, not just cost.