peykan check, a simple continuous quality control method for hematology analyzers

Peykan check, a simple continuous quality control method for hematology analyzers

A simple inexpensive con!nuous quality control method, by means of eight basic blood coun!ng parameters, obtained from automated hematology analyzers, using pa!ent samples, is described. A few samples with low, normal and high values were selected and introduced to the instrument early in the morning as the first count, the results of which are plo#ed on the appropriate chart as dots. The sa...

Rationale for using insensitive quality control rules for today's hematology analyzers

Diverse approaches have been used to assure the analytical quality of automated hematology; as such, there is great variation in their error detection capabilities. We summarize the intralaboratory performance of a cohort of Sysmex XE-2100's running e-Check hematology quality control (QC). The imprecisions of a median performing (50th percentile imprecision) and more imprecise [15th percentile ...

A Niche for Microfluidics in Portable Hematology Analyzers

The complete blood count (CBC) has by and large remained confined to the traditional laboratory setting since its inception. Used in a variety of diagnostic assessments, the CBC has essentially become limited to clinical laboratories because of reliance on large automated hematology devices. With many potential uses at the point of care and clinical settings, as well as the research laboratory,...

Development and validation of effective real-time and periodic interinstrument comparison method for automatic hematology analyzers.

OBJECTIVES We developed and validated an interinstrument comparison method for automatic hematology analyzers based on the 99th percentile coefficient of variation (CV) cutoff of daily means and validated in both patient samples and quality control (QC) materials. METHODS A total of 120 patient samples were obtained over 6 months. Data from the first 3 months were used to determine 99th perce...

Stabilization and Walking Control for a Simple Passive Walker Using Computed Torque Method (RESEARCH NOTE)

Abstract   The simple passive dynamic walker can walk down a shallow downhill slope with no external control or energy input. Nevertheless, the period-one gait stability is only possible over a very narrow range of slopes. Since the passive gaits are extremely sensitive to slope angles, it is important to use a control strategy in order to achieve a wide range of stable walking. The computed to...

Establishing Quality Control Values for Hematology Parameters: An Insight.