| parent | EKG.MEAS | LP7795-0 |
| child | QRS duration | {Electrocardiograph lead} | EKG measurements | LP407001-9 |
| child | QRS duration | Heart | EKG measurements | LP407002-7 |
| STATUS | ACTIVE |
| PartDisplayName | en-US | QRS duration |
| DisplayName | en-US | QRS duration |
LOINC Version: 2.78