in 13 unanesthetized lambs ( less than 7 days old ) we measured arterial and sagittal sinus blood gases , and o2 contents , and cbf ( microsphere technique ) at oxyhemoglobin hcts of approximately 20 and 40 % and after an isovolemic exchange transfusion with a mixture of normal and pure methemoglobin ( mhb ) containing red cells .
C0030069
oxyhemoglobin
C0014792
red