title: Laboratory preparation and evaluation of a multiparameter hemocytometry control.
abstract: A protocol for the laboratory preparation of a multiparameter hemocytometry control is given. Human platelets, stabilized by a basically simplified and inexpensive fixation procedure, are added to our previously described white and red blood cell control. Evaluation of this multiparameter control shows good precision characteristics and acceptable mechanical stability for at least 7 weeks, as measured in the Coulter counter Model S Plus-II. The control can basically contribute to the realization of the essence of internal quality control: continuous self-auditing and continuous attempts at improvement of performance.
mesh_terms: D001792:Blood Platelets; D005069:Evaluation Studies as Topic; D005404:Fixatives; D005434:Flow Cytometry; D006403:Hematologic Tests / Q000592:standards*; D006801:Humans; D011786:Quality Control; D012015:Reference Standards
chemical_list: D005404:Fixatives