Platelet aggregometry has been the reference method employed to detect, diagnose, and
monitor qualitative platelet disorders since the early 1960s. Lumiaggregometry and impedance…

The activated partial thromboplastin time (aPTT) is widely used as a screening coagulation
test and for monitoring unfractionated heparin therapy. Various commercial reagents are …

ABBRVIATIONS: ADP-adenosine diphosphate; ATP-adenosine triphosphate; CAM-cell
adhesion molecule; cAMP-cyclic adenosine monophosphate; DAG-diacylglycerol; DTS-dense …

Light transmittance aggregometry is the historical reference method for platelet function
testing and continues to be used extensively. Whole blood impedance lumiaggregometry …

Background The normalized dilute Russell viper venom time (DRVVT) ratio provides a robust
assay methodology for lupus anticoagulant (LA) detection. Objectives We evaluated six …

The purpose of this study was to compare the ability of four commercial platelet function
assays to detect aspirin response in normal individuals taking 81 or 325 mg aspirin in a single-…

Aware that an estimated 70% of all diagnoses are based to some degree on laboratory data,
JAAPA welcomes you to a new department," Laboratory Insights." Your colleagues in …

… GEORGE A FRITSMA … George Fritsma MS MT(ASCP) is the Focus: Hemorrhagic
Platelet Disorders editor. … These articles are adapted from chapters 43, 44, and 45 of …

Anticardiolipin antibody, an immunoglobulin that binds negatively charged phospholipids, is
considered to be an in vitro inhibitorof clot-based coagulation procedures. We adapted an …

We measured reticulocyte counts and the middle fluorescence ratio plus high fluorescence
ratio (MFR + HFR), a measurement of reticulocyte maturity, using a Sysmex R-1000 …