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For insulin pump users, how often do you use an extended bolus?

 
     

Every day

 
 

12%

 

  41

 
     

Every two days

 
 

4%

 

  14

 
     

Every three days

 
 

5%

 

  19

 
     

Every four days

 
 

1%

 

  4

 
     

Every five days or more

 
 

13%

 

  43

 
     

Almost never

 
 

26%

 

  86

 
     

Never

 
 

24%

 

  78

 
     

What's an extended bolus?

 
 

12%

 

  39

 


Total votes: 324

 

For insulin pump users, how often do you use an extended bolus?

Poll dates: July 10 - 17, 2005
Total Votes: 324

Today's insulin pumps offer several ways to take a bolus of insulin. These are called extended or square wave, and dual wave or combination, depending on the pump company, but they all change the bolus delivery pattern and can be used for different types of meals. An extended or square wave bolus might be used if you are eating an extremely high fat or very low carb meal, or for people with gastroparesis, in which the absorption of glucose it delayed. The bolus delivery is extended over a given time period so that is it slowly absorbed to allow the glucose to enter the system.

A dual wave or combination bolus allow you to give a certain amount of insulin immediately (as in a normal bolus) and then deliver the remainder over a given period of time (an extended bolus). This option is particularly useful for eating a meal in which you will be "grazing" or one such as pizza and dessert. It might also be helpful in small children who will drink their juice or milk immediately and then take a long time to finish the rest of their meal.

To decide whether you should use either of these features (if they are available to you) check blood sugars frequently after meals. If the glucose continues to rise more than two-three hours after a meal, one of these types of bouses might improve control.

Several studies support the use of extended boluses, including:

  1. Optimal insulin pump dosing and postprandial glycemia following a pizza meal using the continuous glucose monitoring system (Diabetes Technol Ther. 2005 Apr;7(2):233-40)

  2. Post-prandial glucose excursions following four methods of bolus insulin administration in subjects with Type 1 diabetes (Diabet Med 2002 Apr;19(4):317-21).

We last ran a similar poll in September 2002.

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Last Updated: Sunday July 17, 2005 13:24:00
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