Product name: Sodium citrate 1:4 tube Cap color: black Preparation specimen type: whole blood Blood collection volume: 0.5ml-10ml Test tube specifications: 13*75/13*100/8*120 Material: glass/PET Scope of application: Blood cell sedimentation rate examination The concentration of sodium citrate is 3.8%, and the volume ratio of anticoagulant to blood is 1:4. It is generally used for erythrocyte sedimentation test. When the anticoagulant ratio is too high, the blood will be diluted, which can accelerate the erythrocyte sedimentation rate.