Blood Volume Versus Central Venous Pressure in Shock
Maclean, L.D.
Surgery Gynecology and Obstetrics 118: 594-595
1964
ISSN/ISBN: 0039-6087 PMID: 14130919 Document Number: 8377
Until recently the surgical patient in shock was apt to be suffering from hypovolemia secondary to the blood loss of trauma or disease. Not only is the administration of blood in these situations successful in reversing the shock and restoring vital organ perfusion but experience has indicated that overtransfusion rarely occurs. Arterial blood pressure is a reasonable guide to therapy. Inefficient treatment, which occurs most often when there are no external signs of bleeding, is usually due to inadequate amounts or insufficient speed of administration of blood. The use of vasopressors to restore arterial blood pressure may mask the inadequate restoration of volume. Critical measurements of blood volume in these situations, when urine output and peripheral arterial pressure indicate adequate perfusion of vital organs, have revealed surprisingly large increases in blood volume.
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