Why does haemotocrit decrease in acute blood loss?

by sameeralord
Tags: acute, blood, decrease, haemotocrit, loss
sameeralord is offline
Feb16-11, 01:58 AM
P: 635
In acute blood loss both RBC and fluid is lost, so why doesn't haemotocrit stay normal. I know compensatory mechanism would increase the fluid, eg kidney. But red blood cell prodcution would take few weeks. Is that the reason haemotocrit decreases? Thanks
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aroc91 is offline
Feb16-11, 04:26 PM
P: 159
Indeed. Plasma would be restored way before RBC count.
walshlg is offline
Feb18-11, 07:24 AM
P: 4
The decrease in mechanical pressure results in a reballance of intersititial fluid (eg think the opposite of edema).

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