Don’t panic. Most of the materials inside the kit are still usable. The expiration date on the kit or at least one of the included tubes has expired. Please check the individual tubes before using them. If a tube is past it’s date, then they can be swapped out for standard SST tubes (yellow top, tiger top) and EDTA tubes (lavender top) as long as those tubes have not expired. Any expired tubes will be rejected per CLIA regulations.