Hemolysis of Blood Samples
Hemolysis of Blood Samples, Hemolysis is the breakdown of red blood cells, which can affect laboratory results. Serum samples containing more than 100 mg/dL of hemoglobin can cause non-specific binding in serologic tests. Therefore, serologic testing is not recommended for a serum sample containing more than this amount of hemoglobin.
Follow the instructions below for this:
- Before taking the blood sample, check that the syringe and needle are dry. Also, the barrel and cage of the syringe fit correctly.
- Never use a 24 or 26-gauge needle.
- Do not draw the blood sample too quickly, especially do not foam the blood.
- When transferring blood from the syringe to the tube, remove the needle from the syringe and carefully slowly insert it into the tube.
- Do not shake the tube too vigorously to mix the anticoagulant, but mix carefully and slowly.
- The test tube should be dry and clean.
- If the test tube containing the sample is kept in the refrigerator, never put it in the freezer.