It is a medical fact that is rarely taken into account when testing for blood glucose that anxiety can raise blood glucose levels by a significant amount. When we are anxious the body thinks it's because we're in danger and the liver releases extra glucose into the blood stream to give us extra energy for 'fight or flight'.
Not only does this falsely elevate blood glucose levels but when we are anxious it takes up to 6 times longer for our blood glucose to return to normal after a meal. That means three hours instead of 30 minutes.
Worth remembering when undergoing both the ordinary blood sugar test, the oral glucose test or Hba1c test.