A technique is described for maintaining the PaCO2within, or close to, the normal range in patients hyperventilated using the Mapleson D Circuit or the Circle system with the soda-lime excluded. Control is achieved by limiting the fresh gas inflow to 4·5 litres/minute.
References
1.
NunnJ. F. (1972): Applied Respiratory Physiology.Butterworth and Co. (Publishers) Ltd., 304(a), 313(b).
2.
PollardB., and GibbD. B. (1977): “Some Adverse Physiological Effects of Hypocarbia and Methods of Maintaining Normocarbia During Controlled Ventilation. A Review”, Anaesth. Intens. Care, 5, 113.
