Carbohydrate Counting Page 11

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Basal-Bolus Insulin and Carbohydrate Counting
How Insulin Pump Therapy works
• Pumps are currently covered for individuals with Type 1 diabetes
through the Assistive Devices Program (ADP).
• Pumps use only rapid acting insulin to provide basal (background)
and bolus (meal or snack/carbohydrate) insulin.
For basal insulin:
• A tiny amount of rapid acting insulin (“a trickle”) is given all day long.
The basal rate will depend on what you need over the day and
night.
• You can change the rate using a ‘temporary basal rate’ feature.
• You may have different patterns for different days.
For bolus insulin:
• You take rapid acting insulin before you eat or drink carbohydrate.
• You can change this dose to match the changes in the carbohydrate
amounts you eat and/or drink.
• An insulin to carbohydrate ratio is used to match the carbohydrate
(carb) content of food and/or drinks. One unit of rapid acting insulin
will match to a certain amount of carbohydrate.
• You may need a correction dose of rapid acting insulin if your
sugars are out of target range.
• A bolus calculator helps you make an accurate dose decision.
It tracks active insulin remaining from the last bolus.
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