Abstract
Summary
Urinary pH was determined hourly for a minimum period of 8 hours in 46 cases. The urine samples which were collected every hour were analyzed for sodium, potassium, ammonia, chloride and titratable acidity. A definite correlation between sodium-potassium excretion and variation in pH of the urine was established. All 16 exhibiting a sodium excretion below 45 microequivalents per minute had a fixed urinary pH at a level which differed considerably from individual to individual. Only one person with a slightly higher sodium excretion (53 microequivalents per minute) had a fixed urinary pH. Potassium showed a similar pattern although less consistent, since 5 subjects with normal pH variations had a low potassium excretion.
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