I am interested in purchasing a platelet aggregometer for our hematology lab, but we don’t have an existing instrument to compare it with. Some suggested H58 NCCLS (CLSI, does not really help) but I am used to validating an instrument with an old instrument (comparison/parallel testing). Can you tell me how to start the validation without an instrument to compare it with and does CAP allows this method?
Hello, and thanks for your question. Because aggregometry is essentially a qualitative procedure, validation is relatively simple. Typically, when you purchase an aggregometer, your representative will assist you with its validation, either by comparing to a calibrated instrument or the instrument of a nearby client. The rep will be acquainted with CAP and CMS requirements. Though I don’t mean to endorse a particular instrument, I suggest you contact Kathy Jacobs from Chronolog, Inc, whose post appears just below this one. Kathy and the Chronolog staff are experts.