| PTT | partial thromboplastin time; particle transport time; posterior tibial tendon (transfer); prothrombi... |
|---|---|
| RNTMI | transfer ribonucleic acid initiator methionine |
| RT | radiologic technologist; radiotelemetry; radiotherapy; radium therapy; rapid tranquilization; reacti... |
| RTF | resistance transfer factor; respiratory tract fluid |
| tDNA | transfer deoxyribonucleic acid |