How long do I have to process blood after it has been collected with the TokuKit?

5 hours: collected blood can be left out at room temperature in the vacutainer for up to 5 hours before processing with the TokuKit. We found that 100% of immune cell subsets are preserved when TokuKits are processed within 5 hours, but that delay to 7 hours results in loss of several important immune lineages. Please note that we do recommend processing within 2 hours post-collection when possible. You can read more about these findings here.