Our May 19th Question of the week was a question about carb counting. Although 58% of respondents chose the correct answer, 42% did not. We thought that this was an important topic to discuss further, so we can pass on correct info to people living with diabetes.
Before we start though, if you don’t want any spoilers and haven’t tried the question yet, you can answer below: Answer Question
Question: LS uses an insulin pump and the 500 rule for carbohydrate coverage. For breakfast, LS plans to eat ½ cup of oatmeal, 3/4 cup of blueberries, a cup of skim milk, a tablespoon of peanut butter, and a cup of coffee with a packet of Splenda. Her insulin to carb ratio is 1 to 12 for breakfast and lunch. Her insulin to carb ratio is 1 to 15 for dinner.
How much insulin does LS need for breakfast?
As shown above, the most common choice was option 4, the second most common answer was option 3 then option 1 and finally option 2.
Answer 1 is incorrect. 14% chose 3.0 units as the answer. This answer was juicy but wrong. Maybe this group thought the total carb count was 45 gms and then divided by insulin to carb ratio of 1:15? If yes, read the question again to see what insulin to carb ratio is a better choice. Also, rethink the total carb count.
Answer 2 is incorrect. Only 8% of respondents chose 2.8 units as an answer. This group got the carb count correct but may want to read the question again to see which insulin to carb ratio is a better choice.
Answer 3 is also incorrect. About 20% of respondents chose 4.0 units. This group might need to reassess the carb count, keeping in mind that milk is 12gms of carb. And, more importantly, keep in mind that LS uses an insulin pump that can deliver very precise insulin doses. No need to round up for this question.
Finally, Answer 4 is correct. 58% of test takers chose this correct answer.
First, lets count up the carbs for breakfast:
Now, let’s do the math:
LS’s insulin to carb ratio is 1 to 12 for breakfast. She is going to eat 42 gms of carb. 42/12 = 3.5 units of insulin to cover breakfast.
We hope you appreciate this week’s rationale! Thank you so much for taking the time to answer our Question of the Week and participate in this fun learning activity!
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