What the difference between hb1ac sugar and one that youd take on a daily basis from a glucometer - using finger prick?

Time frame: HBA1C is a measure of RBC glycocylation which happens when your blood sugar is high. RBC's last in your system about 120days so the HbA1C is a measure of how your blood sugar has been over the last 3mo-the higher the number the higher on average your blood sugar has been over the last 3mo. So a measure of longer term glucose control. The finger prick gives you only information about about current