| Abstrakt: |
An open, single centre study was carried out to evaluate the accuracy of the SpuncritTM(Micro Diagnostics, Bethlehem, PA, USA) infra-red analyser which can be used for near-patient testing to measure haematocrit and estimate haemoglobin concentration. The primary comparison was with the Sysmex NE1500 (Tao Medical) analyser situated in the main hospital laboratory. Secondary comparison was with the Ciba Corning 288 (Ciba Corning Diagnostics Ltd, Halstead, UK) blood gas analyser currently used for near-patient testing in the Northern General Hospital. A total of 217 samples from 50 patients was analysed. The Pearson's correlation coefficients for haematocrit and haemoglobin concentration between the SpuncritTMand Sysmex NE1500 and between the SpuncritTMand Ciba Corning 288 were all close, between 0.85 and 0.92. The method of Bland and Altman was used to asses agreement between the results of the SpuncritTMand the Sysmex NE1500. The agreement for haematocrit was good with 2 SD of the SpuncritTMresults being between - 5.66 and 4.42 of the measurement from the Sysmex NE1500. In conclusion, the SpuncritTMhaematocrit measurement agreed well with results from the central laboratory, but the estimated haemoglobin concentrations agreed less well and three reasons are discussed. |
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