| NACHRI | National Association of Children's Hospitals and Related Institutions |
|---|---|
| NAR | nasal airway resistance; National Association for Retarded [Children, Citizens]; no action required |
| NARC | narcotic; National Association for Retarded Children; nucleus arcuatus |
| NOSIC | Neurologic Outcome Scale for Infants and Children |
| NSCC | National Society for Crippled Children |