Base excess in the other. A secondary (compensatory) process can be readily identified because it "opposes" the observed deviation in blood pH. For example, inadequate ventilation, a respiratory problem, causes a buildup of CO, hence respiratory acidosis; the kidneys then attempt to compensate for the low pH by raising blood bicarbonate. The kidneys only partially compensate, so the patient may still have a low blood pH, i.e. acidosis. In summary, the kidneys partially compensate for respiratory acidosis by raising blood bicarbonate. A high base excess, thus metabolic alkalosis, usually involves an excess of bicarbonate. It can be caused by A base deficit
Blood is thicker than water der Glîchezære. The 13th-century Heidelberg manuscript reads in part, "ouch hoer ich sagen, das sippe blůt von wazzere niht verdirbet" (lines 265-266). In English it reads, "I also hear it said, kin-blood is not spoiled by water." which may in part refer to distance not changing familial ties or duties, due to the high seas being tamed. In 1412, the English priest John Lydgate observed in "Troy Book", "For naturally blood will be of kind / Drawn-to blood, where he may it find." By 1670, the modern version was included in John Ray's collected "Proverbs", and later appeared in Sir