A newborn patient, age of 28 days. Result of beside blood gas analysis:

pH: 7.34 (reference range 7.36 - 7.44)
PaCO2: 41 mm Hg (reference range 36-44 mm Hg)
HCO3: 22.1 mEq/L (22 -26 mEq/L)

Question: Make a acid-base analysis.