Circulating blood volume

這是什麼

Blood volume is the amount of blood in the circulation. Body systems detect changes in volume and reflect them through arterial pressure changes.^[1]

為什麼重要

More circulating volume fills the vascular system more; too little volume leaves less fluid for the heart to pump and less pressure to maintain.^[1,2]

發生異常的根本原因

• Core relation: More retained sodium and water expands circulating volume and loads the arterial system; volume loss reduces venous return, pumped flow, and pressure support.^[1,2]

它會影響哪些判斷

• It links kidney fluid balance, arterial pressure, swelling, dehydration, shock, and medication context.^[1]

解讀陷阱

• Routine blood pressure does not directly measure circulating blood volume.^[1]

相關病症