A Patient with Diabetes Was Taken to the Emergency Department

A patient with diabetes was taken to the emergency department.His arterial blood gas results were as follows: pH: 7.25
Partial pressure of carbon dioxide (PCO₂) : 38 mm Hg
HCO₃⁻ 19 mmol/L
Partial pressure of oxygen (PO₂) : 95 mm Hg
What do these results indicate?

A) Respiratory acidosis
B) Respiratory alkalosis
C) Metabolic acidosis
D) Metabolic alkalosis