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Acta Anaesthesiol Scand. 1991 Oct;35(7):591-5.

Allowing pre-operative patients to drink: effects on patients' safety and comfort of unlimited oral water until 2 hours before anaesthesia.

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  • 1Anaesthetic Department, University Hospital of Wales, Heath Park, Cardiff, UK.


The effect of allowing patients unlimited access to oral water in the time up until 2 h pre-operatively was the subject of a randomised, blind, controlled trial. No effect was seen on gastric volume or pH, or on plasma osmolality, and allowing water pre-operatively was associated with a reduction in anxiety in the anaesthetic room.

[PubMed - indexed for MEDLINE]
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