Published in:
Open Access
01-02-2011 | Poster presentation
Base excess can be misleading in acute respiratory acidosis
Authors:
S Kocsi, K Kiss, B Szerdahelyi, M Demeter, Z Molnar
Published in:
Critical Care
|
Special Issue 1/2011
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Excerpt
Base excess (BE) is the measure of nonrespiratory change of acid-base status in the body. It is calculated after correcting the blood sample's pH to 7.4, temperature to 37°C and pCO
2 to 40 mmHg. Actual HCO
3 level is a metabolic parameter derived directly from the Henderson-Hasselbalch equation. There is some evidence that temporary changes in pCO
2 affect BE [
1,
2], but little is known about the response of HCO
3. Therefore, the aim of this study was to investigate the relationship between BE and HCO
3 in critically ill patients immediately after admission to the ICU. …