title: [Only direct blood volume determination enables the distinction between polycythemia due to plasma volume reduction and true, primary or secondary polyglobulia].
mesh_terms: D001811:Blood Volume Determination; D003937:Diagnosis, Differential; D004911:Erythrocyte Volume; D006801:Humans; D010953:Plasma Volume; D011086:Polycythemia / Q000097:blood*; D011087:Polycythemia Vera / Q000097:blood*
vernacular_title: Seule la mesure directe du volume sanguin permet de distinguer les polycythémies par réduction du volume plasmatique des polyglobulies vraies, primitives ou secondaires.