LOINC long common name : C4 nephritic factor [Presence] in Serum or Plasma;
LOINC short name : C4 NeF SerPl Ql;
LOINC description : C4 nephritic factor (C4Nef) levels in serum or plasma are measured as part screening
patients with C3 glomerulopathy (C3G), a group of rare complement-mediated kidney
diseases.;