SST
For HBsAb, MMR, and Varicella titers, a plain red-top tube without anticoagulant is typically used for serum collection. After collection, the tube should be allowed to clot and then centrifuged to separate the serum for testing. Make sure to follow specific laboratory instructions to ensure accurate results.
serum,tiger tube
green
I would use the semi-colored tube.
a lavender top tube
blue
red
red
gray
tiger top
Light blue
blue