A newborn has cyanosis, tachypnea, and retractions ...
Respiratory acidosis and metabolic acidosis
Hm, what do you mean by "normal compensation?" Are you talking about the bicarb should be increased? Are you saying that a normal compensation would be metabolic alkalosis? Would metabolic alkalosis be an increase in bicarb?
How do you know which one has bigger contribution in this situation where there's increased CO2 and decreased HCO-, both indicating acidosis??
normal kidney compensation would be an increase in bicarb reabsorption => increased serum bicarb. This pt has low serum bicarb => concurrent metabolic acidosis