| NEP | negative expiratory pressure; nephrology; neutral endopeptidase; no evidence of pathology |
|---|---|
| NIF | negative inspiratory force; neutrophil immobilizing factor; nonintestinal fibroblast |
| NPBV | negative pressure body ventilator |
| NPD | narcissistic personality disorder; natriuretic plasma dialysate; negative pressure device; Niemann-P... |
| NPPE | negative pressure pulmonary edema |