We are in the process of compiling a list of potential labs that can handle second-tier testing for total Homocysteine (tHCY) for state newborn screening programs that are unable to process or implement their own second-tier test. We will continue to update this list and encourage you to let us know if you are aware of any others we should add to the list.

We urge you to alter your process even if you believe you have not missed any HCU patients, as we know they are out there and that states do not have the reporting systems and “closed loops” to ensure that there is a full accounting of patients who may have been missed by NBS.  Your proactive willingness to take action could improve the lives for many HCU patients and their families.

If your lab can support outsourced second-tier testing for homocysteine, please forward their information to [email protected]