Things Are Changing!

The migration of TuDiabetes has begun

Content created between now and the launch of our new site on April 20th will NOT be moved to that new home, but our community values and Terms of Service still apply during this time.We are not accepting new members during this transition period. If you want to join the TuDiabetes community please send an e-mail to We will send you an invitation to join after the migration is completed.

Read about the migration and see images of the new site!

This is my first post. I need some help trying to figure this out. I have been using my medtronic pump now for 2 weeks so still learning. My carb ratio number is 23 (still in the figuring i think) so if i eat say 60 grams of carbs and take 3 units of insulin, the way i think this should work is my blood sugars should never reach 200 in 2 hours if i start out at a blood sugar of 113. Or is there something i am missing?

Views: 156

Reply to This

Replies to This Discussion

Congrats on your pump, Bill.

We all have different post prandial (2 hours after meal) targets. Mine is 140, many people use 120; 200 is pretty high imho. A rise of 87 points would be too much.

I agree with Zoe...200 is too high. I aim for 160 or less at the 2-hour mark. But then, two weeks is a very short time on a pump to get it fine-tuned. You might want to change your insulin to carb ratio very slightly (like, say, to 18 (which would have made your bolus for 60g 3.3 units instead of just 3), and see if that works...give it several days before changing it again, and then make very small changes.

It took me about 6-8 weeks to get everything really fine-tuned when I first went on the pump, and recently, after joining a gym and working out several times a week, I had to change everything again.


So, if your carb ratio is 23 carbs per unit of insulin and after 2 hours you should have 70% of your insulin used, then 3 x .7 = 2.1 units. 2.1 units should take care of 48.3 carbs. This means you have to figure how much 11.7 carbs will raise you, plus however much basal you need to keep your bg flat without eating.

11.7 carbs could raise me at least 87 points.

According to the book Think Like a Pancreas:

@ 1 hr, 30% of insulin is used (70% remains)
@ 1.5 hrs, 50% of insulin is used (50% remains)
@ 2 hrs, 70% of insulinn is used (30% remains)
@ 3 hrs, 90% if insulin is used (10% remains)

These are, of course, approximate, assuming you are using either novalog or humalog, and you are injecting less than or equal to 7 units at a time. (According to Dr Bernstein, injecting more than 7 units at a time can cause irregular the insulin to act inconsistently). That is the Richard K Bernstein from New York, author of the Diabetes Solution.

Bill, if you don't already have it Pumping Insulin is a fantastic guide to pumps. Wouldn't be without it. It's available from Amazon and elsewhere.

200 is too high at 2 hours, but as others have said go slowly. Do you have a CDE or trainer who can help guide you?




From the Diabetes Hands Foundation blog...

DHF Joins Diabetes Advocacy Alliance

Diabetes Hands Foundation is incredibly honored to join the Diabetes Advocacy Alliance, an organization with the drive and potential to affect a powerful, positive impact on diabetes and healthcare policy. Diabetes Advocacy Alliance is a 20-member coalition of leading professional Read on! →

Helmsley Charitable Trust Renews Support for DHF

HELMSLEY CHARITABLE TRUST GRANTS SUPPORT TO DIABETES HANDS FOUNDATION FOR FOURTH YEAR  Funding in 2015 to support major transitions in programs and leadership at Diabetes Hands Foundation BERKELEY, CA: February 18, 2015 – The Leona M. and Harry B. Helmsley Read on! →

Diabetes Hands Foundation Team


Melissa Lee
(Interim Executive Director, Editor, has type 1)

Manny Hernandez
(Co-Founder, has LADA)

Emily Coles (Head of Communities, has type 1)

Mila Ferrer
(EsTuDiabetes Community Manager, mother of a child with type 1)

Mike Lawson
(Head of Experience, has type 1)

Corinna Cornejo
(Director of Operations and Development, has type 2)

Desiree Johnson  (Administrative and Programs Assistant, has type 1)


Lead Administrator

Brian (bsc) (has type 2)


Lorraine (mother of type 1)
Marie B (has type 1)

DanP (has Type 1)

Gary (has type 2)

David (has type 2)


LIKE us on Facebook

Spread the word


This website is certified by Health On the Net Foundation. Click to verify. This site complies with the HONcode standard for trustworthy health information: verify here.

© 2015   A community of people touched by diabetes, run by the Diabetes Hands Foundation.

Badges  |  Contact Us  |  Terms of Service