| Abbreviations | Meaning |
 | RHA | Regional Health Administrators |
 | RHAM | Regional Health Authorities Of Manitoba |
 | RHCC | Rural Health Care Corporation |
 | RHFM | Research In Healthcare Financial Management [periodical] |
 | RHIN | Regional Health Information Network |
 | RHIO | Regional Health Information Organization |
 | RHIS | REUTERS Health Information Services |
 | RHP | Rainforest Health Project |
 | RIA | Research Institute On Addictions |
 | RIAQ | Réseau Internet Des Aînés Du Québec |
 | RIATT | Research Institute For Assistive And Training Technologies |
 | RIBLAC / BINLAC | Réseau D'Information En Sciences Biologiques Pour L'Amérique Latine Et Les Caraïbes / Biosciences Information Network For Latin America And The Caribbean |
 | RICAI | Réunions Interdisciplinaires De Chimiothérapie Anti-infectieuse / Interdisciplinary Meeting On Anti-Infectious Chemotherapy |
 | RICHE | Réseau D'Information Et De Communication Hospitalier Européen |
 | RICHS | Rural Information Center Health Services |
 | RID | Registry Of Interpreters For The Deaf |
 | RIDA | Rhode Island Dental Association |
 | RIDAA | Rhode Island Dental Assistants Association |
 | RIDHA | Rhode Island Dental Hygienists Association |
 | RIO 91 | Réseau Infirmier D'Oncologie De L'Essonne |
 | RIS | Radiology Information System |
 | RISA | Réseau Information Et De Soins Aquitain |
 | RISC | Radiology Information System Consortium |
 | RISE | Pathology Resident In-Service Examination |
 | RIVM | Rijksinstituut Voor Volksgezondheid En Milieu. National Institute For Public Health And The Environment |
 | RIVMA | Rhode Island Veterinary Medical Association |
 | RJOS | Ruth Jackson Orthopaedic Society |
 | RLS | Restless Legs Syndrome |
 | RML | Regional Medical Libraries |
 | RMMAD | Revue Marocaine Des Maladies De L'Appareil Digestif |
 | RMO | Références Médicales Opposables |
 | RMOP | Rocky Mountain Ophthalmic Personnel |
 | RMP | ASHP Resident Matching Program |
 | RMS | Records Management Society |
 | RMSO | Rocky Mountain Society Of Orthodontists |
 | RMT | Registre Morphologique Des Tumeurs Au Grand-Duché De Luxembourg |
 | RMTC / CCDR | Relevé Des Maladies Transmissibles Au Canada / Canada Communicable Disease Report [periodical] |
 | RN | Registered Nurse |
 | RN HPAR | Registered Nurse Hospice And Palliative Alternative Recertification |
 | RNA | Registered Nurse Anesthetist |
 | RNABC | Registered Nurses Association Of British Columbia |
 | RNANS | Registered Nurses Association Of Nova Scotia |
 | RNANT/NU | Registered Nurses Association Of The Northwest Territories And Nunavut |
 | RNAO | Registered Nurses Association Of Ontario. Association Des Infirmières Et Infirmiers Autorisés De L'Ontario |
 | RNBS / NNLH | Réseau National Des Bibliothèques Pour La Santé / National Network Of Libraries For Health |
 | RNCB | Royal National College For The Blind |
 | RNCM | Registered Nurse Case Manager |
 | RNDH | Réseau National Des Documentalistes Hospitaliers |
 | RNFA | Registered Nurse First Assistant |
 | RNFANC | Registered Nurse First Assistant Network Of Canada |