blood pressure is normally taken on the upper arm at the level of the heart. suppose, however, that a patient has his arms in a cast so you cannot take his blood pressure in the usual way. if you have him stand up and take the blood pressure at his calf, which is 94.5 cm below his heart, what would be the magnitude of the difference between this measurement of blood pressure and a normal blood pressure measurement? the density of blood is 1060 kg/m3.