HTHSCI 1H06 Lecture 4: Acid Base
27 Jul 2018
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Document Summary
Ph is a negative scale so when the numbers go down, the h+ conc goes up. Ph is a log scale, so the difference between ph of 5 and a ph of 6 is that there is. 10x as much h+ at ph of 5. Humans can have urine that is at a ph of 8 and stomach acid of a ph of 1. 5. Almost all biological fluids have a very narrow range of ph except for urine. The most important fluid to consider is human venous blood and it"s normally between. Sustained levels outside of that range are indicative of pathology. We cannot survive long excursions from the normal ph range. Alkalosis is a much more rare problem and is almost never fatal. Acidosis is a serious problem and can be fatal; at a ph of about 7. 0, the cns becomes so depressed, normal functioning ceases. If your ph is too low you lose the drive to breathe.
