| CLASS | EKG.MEAS | LP7795-0 |
| COMPONENT | P wave axis.horizontal plane | LP30968-9 |
| PROPERTY | Angle | LP6778-7 |
| TIME_ASPCT | Pt | LP6960-1 |
| SYSTEM | Reference beat | LP7541-8 |
| SCALE_TYP | Qn | LP7753-9 |
| METHOD_TYP | EKG | LP6244-0 |
| parent | P wave axis horizontal plane | Reference beat | EKG measurements | LP406936-7 |
| CLASSTYPE | Clinical class | |
| ORDER_OBS | Observation | |
| EXAMPLE_UNITS | deg | |
| EXAMPLE_UCUM_UNITS | deg | |
| UNITSREQUIRED | Y | |
| STATUS | ACTIVE |
| LONG_COMMON_NAME | en-US | P wave axis horizontal plane Reference beat |
| LONG_COMMON_NAME | en-US | P wave axis horizontal plane Reference beat |
| SHORTNAME | en-US | P wave Ax HP RefB |
| SHORTNAME | es-AR | latido de referencia:ángulo:punto en el tiempo:REFERENCE BEAT:cuantitativo:electrocardiograma |
| SHORTNAME | pt-BR | P onda Ax HP RefB |
| LONG_COMMON_NAME | es-MX | Eje de onda P. plano horizontal:Latido de referencia :Punto temporal:Ángulo:Cuantitativo:EKG |
LOINC Version: 2.81