Physio: Acid-Base Question

[Ven0m]

CO2 <----> H+ + HCO3-

In diarrhea, lots of HCO3- is lost, bringing HCO3 down.
This shifts the above reaction to the right, generating more H+ (bringing H+ up).

....But wouldn't shifting the reaction to the right bring HCO3- back up again?

Like the HCO3 was lost in the diarrhea but this shifted the reaction to the right to generate more H+ (and HCO3)...?

So why is HCO3 dramatically decreased in diarrhea? Wouldn't it just be a net increased H+ and a normal HCO3?

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[DocSpy332]

CO2 <----> H+ + HCO3-

In diarrhea, lots of HCO3- is lost, bringing HCO3 down.
This shifts the above reaction to the right, generating more H+ (bringing H+ up).

....But wouldn't shifting the reaction to the right bring HCO3- back up again?

Like the HCO3 was lost in the diarrhea but this shifted the reaction to the right to generate more H+ (and HCO3)...?

So why is HCO3 dramatically decreased in diarrhea? Wouldn't it just be a net increased H+ and a normal HCO3?

If diarrhea persists you keep losing HCO3.. So they will be low despite the right shift