| NCSN | National Certified School Nurse |
| ND | Doctor of Nursing (A professional doctorate not to be confused with the DNSc or PhD. |
| Naturopathic Doctor, used primarily in the Alternative herbal or homeopathic fields of study |
| NEA | National Education Association |
| NENA | National Emergency Nurses Affiliation |
| NEO | Neonatologist |
| NFPA | National Fire Protection Association |
| NGA | Notice of Grant Award |
| NH | Nursing Home |
| NICs | Nursing Interventions Classifications |
| NICU | Neonatal Intensive Care Unit; Neuro - Intensive Care Unit |
| NIH | National Institute of Health (US) |
| NNNHP | Nurses' Network for a National Healthcare Plan |
| NNP | Neonatal Nurse Practitioner |
| NOC | Nursing Ourcomes Classifications |
| NP | Nurse Practitioner (USA), Nurse Prescriber (UK) |
| NPP | Psychiatric Nurse Practitioner (USA) |
| NREMT-1 | National Registry EMT-1 |
| NREMT-P | National Registry EMT-P |
| NRLC | National Right to Life Committee |
| NSAA | National Surgical Assistant Association |
| NSYICU | Nursery Intensive Care Unit |
| NVSPV | Nederlandse Vereniging van Sociaal Psychiatrisch verpleegkundigen (The Dutch Association of Community Psychiatric Nurses) |
| NZNO | New Zealand Nurses Organization |
| OASIS | Outcome & Assessment Information Set |
| Osteotomy Analysis & Simulation Software |
| The Older Alabamians System of Information & Services |
| OB | Obstetrics |
| OGNP | Obstetrical Gynecological Nurse Practitioner |
| OHICU | Open Heart Intensive Care Unit |
| OAM | Acute Otitis Media |
| OCN | Oncology Certified Nurse |
| ONC | Orthopaedic Nurse Certified |
| OPA-C | Orthopedic Physician Assistant - Certified |
| OPS | Ophthalmic Photographic Society |
| OR | Operating Room |
| OTR | Occupational Therapist, Registered |
| PA | Physician Assistant |
| PA-C | Physician Assistant-Certified |
| PACU | Post-Anesthesia Care Unit |
| PALS | Pediatric Advanced Life Support |
| PC | Personal Carer (Australia) |
| PCT | Pulmonary Care Team |
| PCU | Progressive Care Unit |
| Ph.D | Doctor of Philosophy |
| PHN | Public Health Nurse |
| PICC | Peripherally - inserted Central Catheter |
| PICU | Pulmonary Intensive Care Unit; Pediatric Intensive Care Unit |
| PMH-NP | Psychiatric Mental Health Nurse Practitioner. |
| PN | Parish Nurse |
| PNP | Pediatric Nurse Practitioner |
| Portfolio | CV with evidence of an outcome documenting each thing listed on the CV |
| POV | Point of View |
| Postoperative Vomiting |
| Peroxide value |
| ocular pulse volumes |
| PT | Physical Therapist |
| PTA | Physical Therapist Assistant |
| PTCA | Percutaneous Transluminal Coronary Angioplasty |
| RCNA | Royal College of Nursing Australia |
| RCPT | Registered Cardiopulmonary Technologist |
| RCT | Registered Care Technician |
| Resume | 1-2 page document focuses on work experience |
| RD | Registered Dietitian USA |
| RDMS | Registered Diagnostic Medical Sonograger (Ultrasound) |
| RFDS | Royal Flying Doctor Service (Australia) |
| RGN | Registered General Nurse (UK) |
| RHIA | Registered Health Information Administrator (replaces RRA) |
| RHIT | Registered Health Information Technician (replaces ART) |
| RHV | Registered Health Visitor U.K.(Specialist practice in public health) |
| RKT | Registered Kinesiotherapist |
| RM | Registered Midwife (Australia) |
| RMN | Registered Mental Health Nurse England (UK) |
| RN | Registered Nurse (Australia = level 1) |
| RNAC | Registered Nurse Assessment Coordinator |
| RNC | Registered Nurse Certified |
| RN BC | Registered Nurse Board Certified |
| RNFA | Registered Nurse First Assistant (UK) |
| RNMH | Registered Nurse Mental Handicap (UK) |
| RNR | Registered Nurse Recruiter |
| RPFT | Registered Pulmonary Function Technician |
| RPN | Registered Professional Nurse |
| Registered Psychiatric Nurse (Canada) |
| Registered Practical Nurse (Ontario, Canada) |
| RPSGT | Registered PolySomnoGraphic Technician. |
| R & R | Rural & Remote (Australia) |
| RRT | Registered Respiratory Therapist |
| Registered Recreational Therapist |
| Registered Rehabilitation Therapist |
| Registered Respiratory Therapist |
