A simple indirect method for determining plasma sodium levels.
D000838:Anions; D001769:Blood; D006801:Humans; D007477:Ions; D012964:Sodium / Q000097:blood*; D012982:Sodium, Dietary
D000838:Anions; D007477:Ions; D012982:Sodium, Dietary; D012964:Sodium
BLOOD; SODIUM/in blood