Select the search type
  • Site
  • Web
Go

Answers from the BJC Experts

Ask the BJC Expert allows you to get the answers you need about a variety of health, medicine and exercise issues to help you live a more healthy life.

Please browse the most recent questions below or use the search the questions feature to see if the answer to your question is already given. If not, please submit a new question for our experts.

When fasting one to eight hours how long should it take insulin to bring blood sugar back to normal for non-diabetics? For type 2 diabetics, when should insulin bring blood sugar down?

Fasting blood glucose levels should be less than 100 in those without diabetes. Within four hours of eating, blood glucose levels should return to pre-meal levels. In non-diabetics, blood glucose should always stay under 140 mg/dl. Fasting levels for diabetics should be between 90 and 130.
Goals after eating vary for diabetics; ideally, blood glucose should never rise above 180 mg/dl. Within four hours of eating, blood glucose should return to pre-meal levels. Pre-meal goals are often less than 130 mg/dl.
How quickly insulin works depends upon what type of insulin it is. There is rapid-acting insulin and longer-acting insulin. Ask your pharmacist or doctor about the type prescribed for you.

4901 Forest Park Avenue
St. Louis, Missouri 63108
314.286.2000
Copyright © 1997- 2021 BJC HealthCare. All Rights Reserved.