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Stago Group Companies
My Qualiris QCOur International External Quality Assessment (EQA) program for Hemostasis organized by a Proficiency Testing provider accredited to the ISO 17043 standard.
My Expert QCMy Expert QC was designed as part of a process of continuous improvement of quality control management. It enables users to compare their internal quality control results with those of their peers on any instrument of the STA range.
STA-NeoPTimal The website dedicated to the PT offer (STA-NeoPTimal) with unique performances to meet your productivity needs.
Stago webinarsStago provides you with the latest information regarding new tests, new markers or key assays for Thrombosis and Hemostasis. These educational sessions are provided by healthcare professionals and international key opinion leaders in the field.

Tests & Clinical Applications, Pre-surgery screening, What tests are performed?


Stago provides the laboratory tests that are needed for the pre-surgery screening and including:

  • the first line assays with the reagents STA-CK Prest or STA-Cephascreen for the determination of activated partial thromboplastin time (aPTT) and the reagent STA – NeoPTimal for the determination of prothrombin time (PT);
  • the factor assays to assess the intrinsic pathway in case of lengthening of aPTT (that is corrected by the mixing studies) with STA-Deficient VIII or STA – ImmunoDef VIII or TriniCHROM Factor VIII:C, STA-Deficient IX or STA-ImmunoDef IX, STA-ImmunoDef XI and STA-ImmunoDef XII allowing the measurement of the activity of FVIII, FIX, FXI and FXII respectively;
  • the assays allowing the exploration of primary hemostasis and more specifically the diagnosis of Von Willebrand disease and its sub-types with the reagents STA-VWF:Rco, STA-Liatest VWF:Ag, Asserachrom VWF:CB and Asserachrom VWF:FVIIIB
  • the lupus anticoagulant screening that is explained in the section antiphospholipid-syndrome if aPTT is not corrected with the mixing studies.
  • the factor assays to assess the common pathway in case of lengthening of both Quick’s time and aPTT with the reagent STA-Liquid Fib for the measurement of fibrinogen level and the deficient plasmas STA-Deficient II; STA-Deficient V, STA-Deficient VII and STA-Deficient X allowing the measurement of the activity of FII, FV, FVII and FX respectively.

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