Yes, basically identical to the previous 100% oxygen data.
In addition, the hematocrit is elevated, reflecting hypoxemia (people who live at
high altitudes have higher hematocrits for the same reason). The bicarbonate of
21 meq/l (compared to a normal of 24) confirms that the kidney is reducing bicarbonate.
This blood sample was probably drawn after the patient had been on oxygen for a while
and the kidney had begun to move the bicarbonate back toward normal. For the level of
alkalosis seen previously in this patient, the renal compensation probably would have
reduced the bicarbonate well below this value.
The elevated pulmonary arterial line pressures confirm pulmonary hypertension.
The mildly elevated WBC could be a cause for concern, since pneumonia is often a
terminal event in patients with severe COPD and very limited pulmonary reserve.