| I/E | inspiratory/expiratory [ratio]; internal/external |
|---|---|
| I:E | inspiratory/expiratory [ratio] |
| LEEP | left end-expiratory pressure; loop electrosurgical excision procedure |
| NEEP | negative end-expiratory pressure |
| NEP | negative expiratory pressure; nephrology; neutral endopeptidase; no evidence of pathology |