<prompt> Normal glomerular filtration rate GFR in men is125mlmin200 mlmin7.5 Lmin8 Lhour  <response>: 125 mimin 706-GN 646- Ganong 23rd The normal value of GFR is 125 mlmin or 180 Lday A rate of 125 mlmin is 7.5 Lhour or 180 Lday, whereas the normal urine volume is about 1 Ld. Thus 99 or more of the filtrate is normally reabsorbed. At the rate of 125 mlmin, the kidneys filter in 1 day an amount of fluid equal to 4 times the total body water, 15 times the ECF volume, and 60 times the plasma volume The normal filtration fraction varies from 15 to 20 251-SL Blood flow to the two kidney is normally about 22 of the cardiac output or 1100 mlmin 281 -Gyton 10th 