Specimens may be stored on or off the clot, red blood cells, or separator gel
for up to 3 days at room temperature (study performed at 23 to 30°C) or up to 7
days at 2-8°C. If testing will be delayed more than 3 days for specimens stored
at room temperature or more than 7 days for specimens stored at 2-8°C, remove
serum or plasma from the clot, red blood cells, or separator gel and store at
-20°C or colder. Avoid more than three freeze/thaw cycles.