bicarbonate and resp acidosis and alkalosis

[MudPhud20XX]

So, Kaplan physio has a table that shows the summary of the changes in the uncompensated state and says:

Respiratory acidosis: high CO2 and high HCO3-
Respiratory alkalosis: low CO2 and low HCO3-

If it's uncompensated, why would you see high bicarb in resp acidosis and low bicarb in resp alkalosis? In both cases, if they are uncompensated, shouldn't the bicarb just be normal before the compensation?

Many thanks in advance.

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[thehundredthone]

There is a slight movement in the bicarbonate due to the initial movement in CO2. They don't mean it will be severely deranged, but just a little elevated/depressed in the same direction as CO2. This is "normal".

 

[k-bourne]

↑CO2→↑HCO3+↑H
In respiratory acidosis .. the increased CO2 will shift the equation to the left.. leading to increased bicarb and protons .. thats will not effect bicarb much so it will be max. In upper limit of normal.. but will affect the protons conc. tremendously and cause the acidaemia.. and the vice versa occur in resp. Alkalosis.. Hope that helps

 

[MudPhud20XX]

↑CO2→↑HCO3+↑H
In respiratory acidosis .. the increased CO2 will shift the equation to the left.. leading to increased bicarb and protons .. thats will not effect bicarb much so it will be max. In upper limit of normal.. but will affect the protons conc. tremendously and cause the acidaemia.. and the vice versa occur in resp. Alkalosis.. Hope that helps

That makes sense thanks!