… The present study was set up to compare the various reagents regarding sensitivity to a
number of intrinsic clotting factors and to heparin and in order to investigate whether some …

… The specific aim of this study was to test various commercial APTT reagents, as well as a
reagent similar to that used by Basu and associates, with regard toin-vitro sensitivity to heparin. …

… to the prothrombin time. Initially, fresh rabbit lung and brain extracts were employed as the
thromboplastin reagent (8) … It is probable that various bacteria produce enzymes that destroy …

… Various considerations need to be addressed. To date, there … activated partial thromboplastin
time reagent produced by the … and reagents on activated partial thromboplastin time (APTT)…

… also vary in the surface activators as well as the incubation times as … to various coagulation
factors, lupus anticoagulants and heparin have been reported for various aPTT reagents in …

… reagents on APTT ratios Our finding of substantial reagent effects for the PT and AP"IT … and
various types of activators are used as APTT reagents. The need to standardize reagents and …

… While sensitivities of various PTT formulations to specific factors vary, under most … Moreover,
PTT reagents vary in their sensitivity to LA. Some reagents are formulated with increased …

… plasma calibration sets was assessed for local ISI calibration of one reagent (Thromborel-S,
a human placenta thromboplastin) for various coagulometers [43]. In one of these plasma …

… lots of activated partial thromboplastin time (APTT) reagent from the same … reagent lots.
Results were compared with those obtained from duplicate APTT determinations with 1 reagent …

… Although the use of a single preparation of thromboplastin has … was made to calibrate
various commercial thromboplastins … reagents which are equal mixtures of thromboplastin and …