RESULTS	However , when the concentrated blood with a high haematocrit ( 69 + / -12 % ) was filtered , there was a reduction of ATP content in RBCs after passing through the filter ( from 1.45 + / -0.57 micromol g ( -1 ) Hb to 0.92 + / -0.75 micromol g ( -1 ) Hb , p < 0.05 ) .\