I think that it should be noted that a "vial" is not a unit of measurement, that is to say that there are vials that hold different volumes of liquid. According to the USADA website the sample size is less than a tablespoon, that is less than 15 milliliters.
usada.org/testing/sample-collection-process/blood/#tab-
4 vials of blood could easily be 4 vials containing a little under 4 milliliters each. As you can see from this medical supply website vacutainer blood collection tubes have a wide range of capacities (from 2ml up to 10ml on this particular page)
bd.com/vacutainer/products/venous/ordering_info_tubes.asp#hema_edta_plastic
The number of vials in and of itself does not indicate how much actual material was taken. Moreover multiple containers of blood being taken is not out of line with USADA protocols or other types of blood testing.
Given these facts I believe that there is no indication that anything unusual happened here. Its difficult for me to imagine that pac is that sensitive to such a small amount of blood loss as a nosebleed or cut in fight would cause him to lose at least as much if not many times more blood than this.
During the blood collection process, a number of vacutainer tubes of blood could be drawn, but keep in mind, less than one tablespoon of blood will be drawn. After the relevant vacutainer tubes are filled with blood, the BCO will label each tube with the corresponding sample code number for the security bottles, confirming with the athlete that each tube was labeled appropriately.
4 vials of blood could easily be 4 vials containing a little under 4 milliliters each. As you can see from this medical supply website vacutainer blood collection tubes have a wide range of capacities (from 2ml up to 10ml on this particular page)
bd.com/vacutainer/products/venous/ordering_info_tubes.asp#hema_edta_plastic
The number of vials in and of itself does not indicate how much actual material was taken. Moreover multiple containers of blood being taken is not out of line with USADA protocols or other types of blood testing.
Given these facts I believe that there is no indication that anything unusual happened here. Its difficult for me to imagine that pac is that sensitive to such a small amount of blood loss as a nosebleed or cut in fight would cause him to lose at least as much if not many times more blood than this.
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