Normal Assay Control (NAC) may be used as a normal control plasma when assaying for Factors II, V, VII, VIII, IX, X1, XI, XII, fibrinogen, von Willebrand Factor, antigenic and functional Protein C and Protein S (total and free), as well as the chromogenic assays including Antithrombin III, Protein C, Factor VIII and Plasminogen.
NAC is used in factor assays and other testing in the same manner as a fresh plasma pool. Factor II, VII, VIII, IX and X values and the chromogenic Factor VIII, AT-III and Protein C values are traceable to World Health Organisation standards to ensure the utmost credibility in values stated. The control plasma should be used to gauge internal factors in each laboratory’s system.
NAC is supplied as the following: