| DNR | daunorubicin; do not resuscitate; dorsal nerve root |
|---|---|
| DNS | deviated nasal septum; diaphragmatic nerve stimulation; did not show [for appointment]; Doctor of Nu... |
| DNT | did not test |
| FHNH | fetal heart not heard |
| HART | Heparin-Aspirin Reinfarction Trial [not to be confused with HAART |