Hema-Trol whole-blood hemoglobin control utilizes stabilized human red cells that process like a patient sample. Packaged in plastic dropper bottles for easy application, Hema-Trol offers a 2-year expiration from the manufacture date when stored at 2°–8°C. Additionally, the control has a 60-day open vial stability at 2°–8°C, and a 30-day stability when stored at room temperature.

NERL Diagnostics
(800) 556-7575; www.nerl.com