European concerted action on anticoagulation: Comparison of fresh plasma and whole blood multicentre ISI calibrations of CoaguChek Mini and TAS PT-NC whole blood prothrombin time point-of-care monitors

L. Poller, M. Keown, N. Chauhan, A. M H P Van Den Besselaar, A. Tripodi, C. Shiach, J. Jespersen, J. Conard, D. Dias, N. Egberg, J. A. Iriarte, I. Kontopoulou-Griva, B. Otridge

Research output: Contribution to journal › Article › peer-review

Abstract

A procedure for using citrated fresh plasmas for International Sensitivity Index (ISI) calibration of two types of whole blood point-of-care test (POCT) prothrombin time (PT) monitor systems has been assessed in a multicentre study. The CoaguChek Mini and TAS PT-NC systems gave higher ISI with whole blood samples than with fresh plasma calibrations. However, there was good agreement between whole blood and fresh plasma monitor system International Normalised Ratio (INR) and the reference INR of target samples. Reliable INR can therefore be obtained with both whole blood and plasma samples on these two POCT systems based on their respective ISI. With the CoaguChek Mini system, the plasma calibration ISI can also be used to derive reliable INR with whole blood PT results. This was not possible with the TAS PT-NC system.

Original languageEnglish
Pages (from-to)859-866
Number of pages8
JournalThrombosis and Haemostasis
Volume87
Issue number5
Publication statusPublished - 2002

Keywords

  • International Normalised Ratio
  • Multicentre ISI
  • Plasma calibrations
  • POCT monitors
  • Prothrombin time

ASJC Scopus subject areas

  • Hematology

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