Sorry Health, you are incorrect. For the purposes of ABG interpretation normal hco3 is 22 to 24. Sometimes you can use 26. No one uses 28, ever. If they do, they are wrong too. Aside from this, any movement of hco3 will be an attempt to correct the acidosis and would be considered “partial” compensation. The fact it has moved out of norm means its a definite compensation but only considered partial because the pH remains acidotic.
See: Clinical Application of Blood Gases, Shapiro, Harrison, Cane, Templin. (THE final word on all things ABG related (even the mention of “the Shapiro book” inspires awe)
Principles of Anatomy and Physiology Tortora, Grabowski.
Clinical Application of mechanical Ventilation, Chang.
These are references I value somewhat more than Tyler Junior College.