how does blood control its pH level when it is too alkaline?
2007-01-01 10:33:24 · 6 answers · asked by RT 2 in Science & Mathematics ➔ Medicine
2 main ways
1. immediately, there will be repiratory compensation- you'll decrease minute ventilation by breathing slower, which will increase arterial CO2. that will decrease blood pH, or make it more acidic.
2. the kidneys will increase excretion of HCO3 and reabsorption of H. this is more of a chronic compensation.
2007-01-01 10:39:20 · answer #1 · answered by belfus 6 · 2⤊ 0⤋
In the short term people will start breathing fewer times per minute. This raises the level of carbon dioxide in the blood, Carbon dioxide acts as a buffer, and will lower the pH. If the situation persists for a long time, the kidneys will start secreting more bicarbonate ions into the urine. So bicarbonate ions leave the blood and go into the urine. This also has the effect of lowering the blood pH.
2007-01-01 18:41:39 · answer #2 · answered by micha_j1 2 · 1⤊ 0⤋
One of the results of hyperventilating, is the increase in blood pH, making it more alkaline. This is why we give people brown paper bags. When someone hyperventilates, they are blowing out too much CO2--carbon dioxide. This is what they suck back into their system when they suck back the CO2 rich air from the brown bag.
The CO2 helps the bodies buffer system(Hydrogen Ion-Bicrab system). The CO2 helps the blood's buffer system release more Hydrogen Ions(H+) lower the pH of the blood to more normal pH levels in order to maintain homeostasis
2007-01-01 18:57:39 · answer #3 · answered by Muga Wa Kabbz 5 · 0⤊ 0⤋
The normal pH of blood is 7.35 to 7.45 and is controlled by three (3) systems:
Buffer Systems (protein, phosphate and bicarbonate buffer systems) - Act instantly
Respiratory System - Acts within minutes
Renal System - Acts within hours
All are too complex to explain on Yahoo answers, especially the buffer systems, but the website below is pretty easy to understand. I hope this helps.
2007-01-01 19:07:07 · answer #4 · answered by rnrayunretired 3 · 1⤊ 0⤋
If it is too alkaline, it hasn't controlled its pH level...
2007-01-01 18:35:49 · answer #5 · answered by K V 3 · 0⤊ 1⤋
That's a great question. I'll C&P the question into a search engine and find out.....
Check out this site: "How you rot and rust". It might not have the answer but it's a great name....
2007-01-01 18:37:53 · answer #6 · answered by modulo_function 7 · 0⤊ 0⤋