![]() Results: Mean bias was <5% for blood gases, electrolytes, lactate and glucose. Method comparison was performed for all analytes on the epoc System against the RAPIDPoint 500 Blood gas analyzer or laboratory analyzers where applicable. Venous or arterial whole blood samples collected in balanced heparinized syringes were obtained from 69 patients (35 females, 34 males) predominantly (77%) from the surgical unit and intensive care unit (ICU). To evaluate the performance of the epoc hand-held analyzer against the RAPIDPoint 500 blood gas analyzer and laboratory analyzers where applicable. This difference should be considered whenever an Hct measured on a POC analyzer using electrical conductance is used in chelonian patient assessments. Hct values measured with electrical conductivity in chelonians significantly underestimated manual PCVs by about 4%. Controlling for other factors, the magnitude of the disagreement was not affected by the sex of the chelonian but was smaller in red-eared sliders (Trachemys scripta elegans). There was a negative correlation between the value of TS and the difference between the methods. Hct significantly underestimated PCV, with a mean difference between the techniques of −3.8% (95% CI: −4.5 to −3.2 LoA: −11.5 to 3.8). ![]() Of 192 chelonians sampled during this period, 148 had Hct, PCV, and TS results. Generalized linear mixed models were used to determine the effect of different variables on the difference between Hct and PCV. Bland-Altman plots were built to assess agreement between the measurements. We aimed to assess the agreement between Hct values measured with a POC analyzer and manual PCV measurements in venous samples from 148 chelonians.Īll chelonians that underwent bloodwork for clinical reasons had Hct measured with an analyzer employing electrical conductivity (i-STAT, Abbott), PCVs measured using centrifugation, and total solids (TS) measured with refractometry. A few studies with small sample sizes, evaluating agreement between hematocrit (Hct) and packed cell volume (PCV) measurements in chelonians, showed conflicting results. The rules and classifications adopted to carry out surveys are illustrated in the methodological publications, along with all other methodological aspects and software used.Point-of-care (POC) analyzers are increasingly used for diagnostic testing in exotic animals. Through the standard SDMX protocol (Statistical Data and Metadata eXchange), Istat disseminates data of the corporate data warehouse (I.Stat ) also in machine-to-machine mode via web service. The tools developed by Istat in order to guarantee the quality of statistical products and the transparency of the production processes are available in the section Tools for data quality. Through computing system and data analysis users have the opportunity to select and apply techniques of official statistics. The section Methods and IT tools for statistical production contain documents that describe the methods applied in the statistical production processes and the generalized software used for the application of these methods. The use of statistical definitions and classifications adopted at the national and international level facilitates the comparability of the statistical information produced by different organisations. Software packages for statistical production are also available to researchers, statisticians and skilled users.
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