| CMAP | compound muscle (or motor) action potential |
|---|---|
| CNAP | career nurse assistants' programs; compound nerve action potential |
| COMAC/HRS/QA | Community Concerted Action Programme on Quality Assurance in Health Care [European] |
| DA | dark adaptation; dark agouti [rat]; daunomycin; degenerative arthritis; delayed action; Dental Assis... |
| DAH | disordered action of the heart |