CETN: Certified Enterostomal Therapy Nurse
CFNP: Certified Family Nurse Practitioner
CFRN: Certified Flight Registered Nurse
CGN: Certified Gastroenterology Nurse

CGRN: Certified Gastroenterology Registered Nurse
CGT: Certified Gastroenterology Technician
CHES: Certified Health Education Specialist
CHN: Certified Hemodialysis Nurse
CHUC: Certified Health Unit Coordinator
CLA: Certified Laboratory Assistant
CLPNI: Certified Licensed Practitioner Nursing, Intravenous
CLS: Clinical Laboratory Specialist

CLT: Certified Laboratory Technician
CLT: Clinical Laboratory Technician
CM: Certified Midwife
CMA: Certified Medical Assistant
CMA-A: Certified Medical Assistant, Administrative
CMA-C: Certified Medical Assistant, Clinical
CNA: Certified in Nursing Administration
CNA: Certified Nursing Assistant
CNAA: Certified in Nursing Administration, Advanced
CNDLTC: Certified Nursing Director of Long-Term Care

CNM: Certified Nurse Midwife
CNMT: Certified Nuclear Medical Technologist
CNMT: Certified Nuclear Medicine Technologist

CNN: Certified Nephrology Nurse
CNOR: Certified Nurse, Operating Room
CNP: Certified Nurse Practitioner
CNP: Community Nurse Practitioner
CNRN: Certified Neuroscience Registered Nurse

CNS: Clinical Nurse Specialist
CNSN: Certified Nutrition Support Nurse
CO: Certified Orthotist
COCN: Certified Ostomy Care Nurse
COHN: Certified Occupational Health Nurse
CORN: Certified Operating Room Nurse

COTA: Certified Occupational Therapy Assistant
CP: Certified Prosthetist
CPAN: Certified Post Anesthesia Nurse
CPAN: Certified Post-Anesthesia Nurse