| PTR | patellar tendon reflex; patient termination record; patient to return; peripheral total resistance; ... |
|---|---|
| rec | fresh [Lat. recens]; recessive; recombinant chromosome; record; recovery; recurrence, recurrent |
| RRA | radioreceptor assay; registered record administrator |
| RRL | Registered Record Librarian |
| SOAP | subjective, objective, assessment, and plan [problem-oriented record] |