- Preferred sample volume is 1.0 ml of serum, especially if ordering multiple tests. Please call the lab if volume of serum collected is less than 0.5 ml to confirm that test(s) can be performed.
- Collect blood in a sterile red top or serum separator tube (SST).
- Do not force the blood into the tube as this will cause hemolysis.
- Invert the tube 5 times to mix clot activator with blood.
- Allow the blood to sit for sufficient time to clot.
- Centrifuge
- Remove the serum aseptically from red top tube and transfer to a new red top tube or other sterile tube without additive.
- Serum does not need to be transferred from an SST tube after the tube has been centrifuged.
- Make sure that all tubes are legibly labeled, using a permanent marker/pen.
- Refrigerate serum until shipped. Do NOT freeze.
- Ship serum with cold packs.
- If collecting paired serum samples, submit both samples at the same time.