Too much blood collected at any one time may cause hypovolemic
shock, physiological stress and even death. If smaller volumes
are collected too frequently, anemia may result.
As a general rule, 10% of the total blood volume can be collected
at one time every 2-4 weeks. Or 1% at intervals of 24 hours
or more. Total blood volume can be calculated as approximately
7.5% of body weight.
The estimated volume at exsanguination is approximately half
of the total blood volume.
Average Adult Weight
Total Blood Volume
Maximum Sample in mls 2-4 Weeks
Estimated Exsanguination Volume
If you are not experienced in blood collection techniques,