title: Artefactual elevation of plasma calcium results due to contamination of lithium heparin tubes.
authors: Department of Chemical Pathology, St. Peter's Hospital, Chertsey, Surrey, UK.
authors: M J
authors: MJ
authors: Hallworth
authors: N J
authors: NJ
authors: West
authors: A R
authors: AR
authors: Allen
mesh_terms: D001800:Blood Specimen Collection / Q000295:instrumentation*; D002118:Calcium / Q000097:blood*; D004866:Equipment Contamination; D006493:Heparin; D006801:Humans
chemical_list: D006493:Heparin; D002118:Calcium