| CLASS | EKG.MEAS | LP7795-0 | 
| COMPONENT | R' wave duration.lead V4 | LP31119-8 | 
| PROPERTY | Time | LP6879-3 | 
| TIME_ASPCT | Pt | LP6960-1 | 
| SYSTEM | Heart | LP7289-4 | 
| SCALE_TYP | Qn | LP7753-9 | 
| METHOD_TYP | EKG | LP6244-0 | 
| parent | R' wave duration.lead V4 | Heart | EKG measurements | LP407103-3 | 
| CLASSTYPE | Clinical class | |
| ORDER_OBS | Observation | |
| EXAMPLE_UNITS | s | |
| EXAMPLE_UCUM_UNITS | s | |
| UNITSREQUIRED | Y | |
| STATUS | ACTIVE | 
| LONG_COMMON_NAME | en-US | R' wave duration in lead V4 | 
| LONG_COMMON_NAME | en-US | R' wave duration in lead V4 | 
| SHORTNAME | en-US | R' wave dur L-V4 | 
| SHORTNAME | es-AR | duración de la onda R'.derivación V4:tiempo:punto en el tiempo:corazón:cuantitativo:electrocardiograma | 
| SHORTNAME | pt-BR | R' onda dur L-V4 | 
| LONG_COMMON_NAME | es-MX | Duración de la onda R 'derivación V4:Corazón :Punto temporal:Tiempo:Cuantitativo:EKG | 
LOINC Version: 2.78