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Why does haemotocrit decrease in acute blood loss?

by sameeralord
Tags: acute, blood, decrease, haemotocrit, loss
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sameeralord
#1
Feb16-11, 01:58 AM
P: 640
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
#2
Feb16-11, 04:26 PM
P: 166
Indeed. Plasma would be restored way before RBC count.
walshlg
#3
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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