Bill Wexler's Dog Pound Message Board

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Non-Tech : Bill Wexler's Dog Pound

REFR 1.825

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3:44 PM EST

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To: Jim Roof who wrote (2890)	8/6/1999 11:35:00 AM
From: BDR	Read Replies (1) of 10293

A volume expander such as Biotime's product can prevent circulatory collapse in the event of blood loss by maintaining pressure within the system. Blood has that function, too, but has the additional important function of carrying oxygen to tissues. Biotime's product and other starch solutions have about the same O2 carrying capacity as a saline solution. That is, essentially none and that is why they can only replace a portion of the total blood volume that way. If blood loss is great enough you eventually have to resort to transfusion. If we replaced your entire blood volume with something that met your definition of a blood substitute you would be dead within a matter of minutes. A synthetic blood substitute would have to have the ability to transport oxygen in order to be labeled as such. Biotime's product is a volume expander which seems to offer little advantage over other similar products already on the market.

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