Abstract
The TMELT-8 Hematology Analyzer is a fully automated cell counter which utilizes laser light scattering and hydrodynamic focusing to provide an 8 parameter whole blood count. The instrument consists of a sample handler with ticket printer, and a data handler with visual display unit, It accepts 100 microliter samples of venous or capillary blood and prints the values for WCC, RCC, Hb, Hct, MCV, MCH, MCHC and platelet count on to a standard result card. All operational and quality control functions, including graphic display of relative cell size distribution, can be obtained from the visual display unit and can also be printed as a permanent record if required. In a limited evaluation of the ELT-8, precision, linearity, accuracy, lack of sample carry-over and user acceptance were excellent. Reproducible values were obtained for all parameters after overnight storage of samples. Reagent usage and running costs were lower than for the Coulter S and the Coulter S Plus. The ease of processing capillary samples was considered to be a major advantage. The histograms served to alert the operator to a number of abnormalities, some of which were clinically significant.
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