User guide

Optimizing pump therapy
Square Wave and Dual Wave bolus
Square Wave bolus delivers a bolus evenly over a period of time (30 minutes to 8 hours). This bolus can be
used for insulin delivery when you have eaten a long meal with extended snacking. It can also be useful if
you have delayed food digestion due to gastroparesis or meals high in fat. A Square Wave bolus can be useful
if a Normal bolus drops your blood glucose too rapidly. Since the Square Wave portion extends over a period
of time, the insulin is more likely to be available to match your individual needs.
NOTE: During delivery of a Square Wave bolus, you will not be able to do the following pump functions:
change the max bolus amount, change the scroll rate, disable or deliver Dual and Square Wave boluses,
rewind or fill the cannula, change the active insulin time, run a self-test, or access the User Settings menu.
All other pump functions are still available during the Square Wave bolus.
Dual Wave bolus delivers a combination of an immediate Normal bolus followed by a Square Wave bolus.
The Square Wave portion is delivered evenly over a period of time. A Dual Wave bolus is useful for meals
with both rapidly and slowly absorbed carbohydrates. For example, a Dual Wave bolus would be appropriate
for fruit and crackers followed by pasta. The Dual Wave option meets both immediate and extended insulin
needs. A Dual Wave bolus is also useful for correcting elevated blood glucose before a meal.
Optimizing pump therapy 95
Chapter 7