twinmaker
Well-known member
Does anyone know what a 411 error on the INRatio machine means? I tested twice this morning...my last two testing strips...and both times my machine came up with an error message of 411. I have a lot of bruising going on and a nose bleed that has lasted off and on most of the day. I may have to go get a blood draw since I'm out of testing strips. Just wondered what the error was all about. Thanks. LINDA