Transcutaneous measurement of carbon dioxide tension during extended monitoring: Evaluation of accuracy and stability, and an algorithm for correcting calibration drift

David Berlowitz, Jo Spong, Fergal O'Donoghue, Robert Pierce, Douglas J Brown, Donald Alexander Campbell, Peter Catcheside, Ian R Gordon, Peter D Rochford

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16 Citations (Scopus)


We examined the stability and accuracy of PtcCO2 measurements and the performance of a previously described linear interpolation technique designed to correct for calibration drift. METHODS: We compared the PtcCO2 values from 2 TINA TCM-3 monitors to PaCO2 values from arterial blood samples obtained at the beginning, every 15 min of the first hour, and then hourly over 8 hours of monitoring in 6 hemodynamically stable, male, intensive care patients (mean age 46 17 y).
Original languageEnglish
Pages (from-to)442 - 448
Number of pages7
JournalRespiratory Care
Issue number4
Publication statusPublished - 2011

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