Some patients may develop an anaesthetic-induced hypotension from the side-effects of the agents used to induce and maintain anaesthesia. Fluids are therefore often given as a preventative measure. If there is significant blood loss during a procedure, it is necessary to replace these losses, either using blood products or an appropriate fluid. | Some patients may develop an anaesthetic-induced hypotension from the side-effects of the agents used to induce and maintain anaesthesia. Fluids are therefore often given as a preventative measure. If there is significant blood loss during a procedure, it is necessary to replace these losses, either using blood products or an appropriate fluid. |