My father is diabetic since 25 yrs. Age is 70 yrs.  In the last 6 months, he was admitted for Sepsis with acute kidney injury (wbcs were greater than 30,000) creatinine was bad, gangrenous toe which later had to be amputated. He also has high BP issue. He is on strict diet, medication and lifestyle. What should be the acceptable sugar range for him for the below. 1) complete fasting in the mornings 2) before meals 3) 2 hours after meals 4) bedtime