A little something
Feb. 14th, 2011 09:53 am![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
petmoosieThe average adult has a blood volume in the range 4700 to 5000 ml. A donation (Red Cross or other) takes 500ml for the donation part. There are several test tubes of blood taken for tests at the same time (maybe 5?). These are smaller test tubes (maybe 10ml tubes?) with about a ml of agar at the bottom. So at a rough guess, they collect 9 x 5 = 45 ml for testing in addition to the 500ml.
So the blood donation process (for whole blood) takes about 11% of total volume, 11% of red blood cells, 11% of iron, etc. Assuming that the volume is made up within hours from tissue fluid stores and dietary liquids, other components will be diluted to 89% of their original values.
Regeneration times: if known. Red Cells--four to six weeks, maximum 8 weeks (Red Cross site)
Plasma--24 hours (Red Cross site)---Is this volume, volume and electrolytes, volume and blood proteins?
So the blood donation process (for whole blood) takes about 11% of total volume, 11% of red blood cells, 11% of iron, etc. Assuming that the volume is made up within hours from tissue fluid stores and dietary liquids, other components will be diluted to 89% of their original values.
Regeneration times: if known. Red Cells--four to six weeks, maximum 8 weeks (Red Cross site)
Plasma--24 hours (Red Cross site)---Is this volume, volume and electrolytes, volume and blood proteins?
