Variation of Urinary pH and Bicarbonate Concentrations of Students in Metropolitan and Rural Areas of Japan

摘要: Changes in urinary pH and bicarbonate levels were studied urine collected before after final examinations taken by 91 medical students (65 males, 26 females) Tokyo from 87 (73 14 Kanazawa, a rural municipality. Bicarbonate the of both cities increased significantly attending 2 h examinations. The highest value level 7.66 80.3 mM, respectively, found student Kanazawa. Urinary averaged 6.48 11.1 for 6.26 8.91 Given that concentrations carbon dioxide air classrooms drastically during (i.e., 700 ppm to 1 200 500 Kanazawa), it appears increases correlated with increase (known be convertible blood) rooms. This was also supported 20 who stayed cinema 3 h, at which location reached ppm.