Slender ESR Tube

Sodium Citrate 1:4 ESR Slender Tube The concentration of sodium citrate required by the erythrocyte sedimentation rate test is 3.2% (equivalent to 0.109mol/L), and the ratio of anticoagulant to blood is 1:4. Containing 0.4mL of 3.8% sodium citrate, draw blood to 2.0ml. This is a special test tube for erythrocyte sedimentation rate. The sample type is plasma. It is suitable for erythrocyte sedimentation rate. Immediately after drawing blood, mix it upside down and mix 5-8 times. Shake well before use. The difference between it and the test tube for coagulation factor examination is that the concentration of anticoagulant and the ratio of blood are different, which should not be confused.

Step 1: Place patient's arm in a downward position and clean venipuncture site with alcohol;
Step 2: Apply tourniquet;
Step 3: Remove the upper cover of needle and assemble the needle in holder; Perform venipuncture with arm downward and tube stopper upper-most;
Step 4-5: Push tube onto needle, puncturing stopper diaphragm;
Step 6: Release tourniquet as soon as blood appears in tube and remove tube from holder when first tube has filled to its stated volume and blood flow ceases;
Step 7: Turn the filled tube upside-down and return it to upright positions and repeat this inversion according to different additive performance;
Step 8: Place succeeding tubes in holder, puncturing diaphragm to begin follow, see Recommended Order of Draw;
Step 9: As soon as blood stops flowing in the last tube, remove tube from holder and remove needle from Vein, applying pressure to puncture site with dry sterile swab until bleeding stops;
Step 10: Dispose the needles into Sharps Disposal Containers according to related policies and guidelines.

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