Hi, I need a bit of help please, my daughter has been having high blood readings over the last few days, she uses the aviva expert with time blocks and carb ratios. If her bloods are high do I need to lower her carb ratio or up it her ratio in the time block when she tends to be high is 1u to 15g carb. I think I need to lower it but the lady I spoke to at clinic said to up the carb ratio. I'm really confused. Thanks