Like "The blood coming from your finger tips offers the most accurate reading. This is important if you are hypoglycemic and need to know how low you are. Blood can be drawn from arms and thigh (my Accu-Chek 360 had a device to use for drawing blood from alternate sites)but the last 2 fingers on both hands still work for me. And I use the same lancet for days, and seldom wash my hands except if I am in a public place.... "