<prompt> Anticoagulant used for chelating calcium -E DTAOxalateSodium citrateAll of the above  <response>: Answer-D. All of the aboveMost of the anticoagulants used in the laboratory act by binding calcium as an insoluble salt or soluble but un-ionized salt.Thesecalciumchelatinganticoagulantsare :-EDTADouble oxalateSodium citrateSodiumJluoride 