Re: Highest and lowest recorded blood glucose Home › Forums › Highest and lowest recorded blood glucose › Re: Highest and lowest recorded blood glucose 7 October, 2010 at 5:29 am #7261 Hairy GnomeParticipant Highest was 26 mmol/l when diagnosed, lowest was 2.3 mmol/l, the closest I’ve ever come to a hypo, it made me feel a bit shaky I have to confess.