Streck laboratories' (US) Calibration Verification Assessment (CVA) kit offers fourth level:
This article was originally published in Clinica
Executive Summary
Streck Laboratories' (US) Calibration Verification Assessment kit is now available in four prediluted levels of each parameter to test the reportable ranges of haematology instruments. The CVA is claimed to be the only assayed calibration product that includes both abnormally low and high ranges, thereby ensuring that patient reportable ranges are verified. Compliant with College of American Pathologists (CAP) requirements, it is specifically designed for three- and five-part haematology instruments as well as automated and semi-automated non-differential haematology analyzers.