Medical-Surgical
Telemetry
Oncology
Hematology/Oncology (Heme-Onc)
Antepartum/Postpartum
Labor and Delivery
Pediatrics
Intermediate Care Unit
Psychiatric
Neurology
Intensive Care Unit/Critical Care
Hospice
Neonatal intensive care (NICU)
Post-Anethesia Care Unit (PACU)
Operating Room
Burn Unit
Clinical Education
Interventional Radiology
Endoscopy (both inpatient and outpatient procedures)
Gastroenterology (both inpatient and outpatient procedures)
Emergency Room
Wound Care
Pediatric
General Primary Care
Infusion/Chemotherapy
Mental Health outpatient
Infectious disease nurses
Rehab nurses
Inpatient and outpatient eating disorder clinics
Women's Health
Plastic Surgery
Aesthetics/Cosmetics/Botox
Dialysis Nurse
Diabetic Education
Research/Epidemic research
Forensics
Correctional Facilities (Prisons, Juvenile Detention Centers, Jails)
Home Health/home hospice/home infusion
Travel Nursing
Informatics
Long term care/Skilled Nursing Facility
Legal consultation
Military Nurse
Phone triage
Flight Nurse
School Nurse
Case Management
Administration/Leadership/Management
Occupational Health
Public Health
Master of Nursing
ARNP (Advanced Registered Nurse Practitioner)
Nurse Anesthetist
CNS (Clinical Nurse Specialist)
DNP (Doctor of Nursing Practice)
Nurse Midwife
Reference and more explanation here.