What are your blood glucose levels doing?

What are your blood glucose levels doing?

When should you check your blood glucose levels?

The only way to know the effect of exercise on your blood glucose levels is to check your blood glucose. Blood glucose should be checked at 3 time points:

Before exercise: Two blood glucose readings should be taken at least 10 minutes apart before exercise so that the starting glucose is known as well as the direction in which the blood glucose is going.

During exercise: If it’s possible, blood glucose should be checked every 30 minutes during exercise.

After exercise: Blood glucose should be checked on finishing, an hour later and 6 hours later (or prior to bed). If you have done a new exercise or exercise for longer than 2 hours then blood glucose should be checked at 3 am.

Have you had a hypo in the 24 hours before exercise?

DO NOT EXERCISE if you have had a severe hypo in the 24 hours before you are planning to exercise.

A severe hypo is one where you have needed help from someone else to treat it. If you have had a self-treated hypo in the last 24 hours:

  • Do NOT exercise alone
  • Check your blood glucose more often
  • Check your blood glucose during the night after your exercise

What is your blood glucose?

The following guide tells you what to do depending on your blood glucose levels before you exercise:

If you use Freestyle Libre

If you use the Freestyle Libre you should look at the trend arrows to provide guidance on what to do:

Confirm with BG reading if:

Up arrow and glucose between 5.7 - 6.9: No need for extra carbs. Proceed to exercise. Stick to advice if any other range

Down arrow and glucose between 5.7 - 6.9: Take twice as many carbs at 20 and 40 minutes into exercise

Down arrow and glucose between 7 - 9: Take 15 grams of carbs at start of exercise



Comments:

  1. Comment by Scott. M. on 15/08/2022 at 4:01 PM

    3-time points:

    change to

    3 time points:




  2. Comment by Kirsten. C. on 23/08/2022 at 11:02 AM

    Changed Scott. Would like Debbie to review the chart and see if she is happy with the figures here




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