| parent | PULM | LP7840-4 |
| child | FEV1 percent change | Respiratory system | Respiratory measures and Ventilator management | LP404753-8 |
| STATUS | ACTIVE |
| PartDisplayName | en-US | Volume expired during 1.0 s of forced expiration percent change |
| DisplayName | en-US | FEV1 percent change |
LOINC Version: 2.81