The initial reading from the monitor stated 505. While I know this is still way too high, I initially felt good since it was 200 points below where I was two days ago. I had my doubts so, using a new strip took another reading (from the same stick point) which now reflected 600. This is what I recorded on Goma's spreadsheet. Being so new to all this, my question is: Can the monitor readings really be so drastically different? How can we rely on this? Nearly a 100 point variance in a matter of seconds from the same blood source.