Highest blood sugar level (male)

Michael Patrick Buonocore (USA) (b. 19 May 2001), survived a blood sugar level of 147.6 mmol/L (2,656 mg/dl) when admitted to the Pocono Emergency Room in East Stroudsburg, Pennsylvania, USA, on 23 March 2008. The normal blood sugar range is between 4.4 to 6.6 mmol/L (80-120 mg/dl).