buffering with sodium bicarb
this means the sodium bicarb is gone because carbonic acid and sodium chloride as a result
how do the results of buffering affect carbonic acid and sodium bicarb ration
You used sodium bi carb so it goes down and the carbonic acid was produced so you increase the carbonic acid, increasing the H+
-but not as much as if you buffered with HCL, because you have a little bicarb left
excretion of C02 at lungs
if this is excreted at the lungs, is the free H+ from pancreas eliminated and everything back to normal?
-NO because the sodium bicarb is not brought back in
-when this happens, the H+ will decrease because the CA has decreased and the H+ will be eliminated
-so to eliminate H+ you will have to bring IN BICARB
***also Sodium bicarb is not going up yet because you cannot replace it at lungs, you have to do it at kidneys!!
replacement of bicarb
this is used when buffering strong acids
-you have used the carbonate up and you need to create more in order to buffer these strong acids
-you start with K+ buffer Na2HPO4
you get bicarbonate
from dissolving carbonic acid!!
this is made by gluconeogenesis
-this is done by the kidneys
-this is the making of sugar and free H+
for every H+ secreted
Na+ is reabsorbed
NH4Cl is created so
this is so you do not have HCL in urine