The great advances made in our understanding of the disturbances in fluid balance in many diseases have had the unfortunate consequence of making the subject increasingly complex for the practicing physician. Application of available knowledge requires a discouraging amount of calculation, which becomes easy only through constant use. It would thus seem desirable to have some simplified therapeutic scheme which obviates the need of much calculation but which continues to emphasize the basic therapeutic principles concerned with repair of deficits and with prevention of further deficits through the addition of fluids appropriate for maintenance.
We have for a number of years employed an outline of fluid therapy for the guidance of resident staff and students. Originally patterned in large part on the recommendations of Butler and Talbot,* it has been periodically revised and amplified and has proved very useful in training the staff in the management of a variety of