MRX APTT
Activated partial thromboplastin time (APTT) is a clotting test for detecting abnormalities within the intrinsic and common coagulation pathways. The APTT test is a global coagulation assay where the test result depends on the combined performance of coagulation factors II, V, VIII, IX, X, XI, XII, and fibrinogen.
MRX APTT is a liquid reagent with low lot-to-lot variation and long shelf life based on colloidal silica as the contact activator and phospholipids of plant origin. MRX APTT is sensitive to mild deficiencies of FVIII, FIX, and FXI and has high sensitivity to unfractionated heparin. Moreover, MRX APTT is insensitive to lupus anticoagulants which is an advantage when screening for coagulation factor deficiencies.