Determinants of cerebral blood flow include: A. Preoperative neurologic dysfunction. B. Arterial CO 2 tension. C. Arterial O 2 tension. D. Systemic arterial pressure. E. All of the above.
Answer: BCD DISCUSSION: Determinants of cerebral blood flow include arterial CO 2 and O 2 tensions, systemic arterial pressure, and temperature. Other factors that may affect cerebral blood flow and intracranial pressure are head position, jugular venous obstruction, and positive end-expiratory pressure