Urinary Output and Phosphorus Excretion in Human Subjects During Prolonged Exposures at Low Simulated Altitudes. ∗

Abstract

Conclusion

1. No appreciable change in total urine output from ground level values was found to occur in human subjects during prolonged exposures to simulated altitudes of 8,000 and 10,000 ft. under conditions of restricted food and water intake.

2. The renal excretion of phosphorus was significantly decreased at altitude.

3. These experiments indicate that alteration in the mineral metabolism may occur in the unacclimatized human being at altitudes as low as 8.000 ft.