| CNR | cannabinoid receptor; Center for Nursing Research; contrast-to-noise ratio; Council of Nurse Researc... |
|---|---|
| CNS | central nervous system; clinical nurse specialist; coagulase-negative staphylococci; congenital neph... |
| COHN | Certified Occupational Health Nurse |
| CRNA | Certified Registered Nurse Anesthetist |
| CRRN | certified rehabilitation registered nurse |