| parent | Complement C4 | LP16371-4 |
| child | Complement C4d | Plasma | Hematology and Cell counts | LP393750-7 |
| child | Complement C4d | Red Blood Cells | Hematology and Cell counts | LP393751-5 |
| STATUS | ACTIVE |
| PartDisplayName | en-US | Complement C4d |
| DisplayName | en-US | Complement C4d |
LOINC Version: 2.78