passages.id: split_4_test_2140_passage
passages.type: progene_text
passages.text: We tested the hypothesis that bulk oxygen transport ( CBF x CaO2 ) to ischemic tissue is increased by hemoglobin transfusion at a hematocrit of 18 % compared with albumin - transfused cats at a hematocrit of 18 % or control cats at a hematocrit of 30 % and equivalent arterial pressure .