A collection of reagents and other associated materials intended to be used for the qualitative and/or quantitative determination of multiple makers associated with coagulation including coagulation factors, intermediates and/or their activated components, functional tests [activated partial thromboplastin time (APTT), thrombin time (TT), prothrombin time (PT)] and/or physiological anticoagulants (e.g., antithrombin III) in a clinical specimen, using a clotting method.