Blood volume is normal after pre-operative overnight fasting.

  title={Blood volume is normal after pre-operative overnight fasting.},
  author={Matthias W Jacob and Daniel R Chappell and Peter Conzen and Udilo Finsterer and Markus Rehm},
  journal={Acta anaesthesiologica Scandinavica},
  volume={52 4},
BACKGROUND Pre-operative fasting is assumed to cause a deficit in intravascular blood volume (BV), as a result of ongoing urine production and insensible perspiration. Standard regimes consist of volume loading prior or simultaneous to any anaesthetic procedure to minimise the risk of hypotension. However, fluid overload in the context of major abdominal surgery has been shown to deteriorate patient outcome. Our study aimed to quantify total intravascular BV after fasting by direct measurements… CONTINUE READING