Answers for your program.

Participants collect samples using their program's instructions.

Participants pack samples using their program's return instructions.

C4HXP can support sending samples when your program includes it. Participants follow their return instructions.

Partner labs analyze samples and return results to C4HXP.

Authorized team members use the Admin Portal for their program's records. Authorized participants use the Client Portal for their own samples and lab-returned results.

Shelf life, storage conditions and acceptable transport time depend on the collection materials and requested assays. Follow the expiration date and storage and return instructions supplied with your program. Our team can help confirm the requirements for your program.

The blood card is used for specimen collection and transport. It does not analyze the sample or generate results; those steps belong to the partner laboratory. Contact our team for the current device classification and listing documentation for your program. Device registration or listing does not itself mean FDA approval.

At the partner laboratory, material from the collected blood card is prepared and extracted using the laboratory's approved procedures. The extracted material is then analyzed using the appropriate assay methods. Extraction is a laboratory step; participants follow their program's collection and return instructions.