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Hi @Kaate,
I have done 12 and 24 hours fasts to check the basal program of my insulin pump and also as a test drive of fasting for surgery.
The thing I found was that for me, about the 18 hours mark, I would start to develop ketones and my specialist pointed out that the ketones would increase my insulin's resistant and interfere with the blood sugar levels. Thus I only do 12 hours fasts, one day one, 12 hours, wait a day or two then do the other 12 hours as a means to check my basal requirements.
If the aim of your fasting is really about seeing whether your Lantus is lasting 24 hours or not, would not a fasting test beginning say, 12 to 14 hours after your Lantus dose provide the information required ?
Sure the extra BSL information is helpful to see how your Lantus handles your basal requirements over 24 hours but as I pointed out the last ? 6 hours or so may not be accurate.
Why put yourself through more than is necessary would be my question to your doctor? And afterall you are the one doing this not him/her.
I have never been prescribed Lantus but I found Levemir twice daily provided me with the flexibility to adjust for some variation in my insulin sensitivity between day and night. And on an insulin pump my basal program varies quite a bit so nothing near as even as the profile of either Lantus or Levemir.
Best Wishes with sorting out your basal requirements !!
 
kitedoc said:
Hi @Kaate,
I have done 12 and 24 hours fasts to check the basal program of my insulin pump and also as a test drive of fasting for surgery.
The thing I found was that for me, about the 18 hours mark, I would start to develop ketones and my specialist pointed out that the ketones would increase my insulin's resistant and interfere with the blood sugar levels. Thus I only do 12 hours fasts, one day one, 12 hours, wait a day or two then do the other 12 hours as a means to check my basal requirements.
If the aim of your fasting is really about seeing whether your Lantus is lasting 24 hours or not, would not a fasting test beginning say, 12 to 14 hours after your Lantus dose provide the information required ?
Sure the extra BSL information is helpful to see how your Lantus handles your basal requirements over 24 hours but as I pointed out the last ? 6 hours or so may not be accurate.
Why put yourself through more than is necessary would be my question to your doctor? And afterall you are the one doing this not him/her.
I have never been prescribed Lantus but I found Levemir twice daily provided me with the flexibility to adjust for some variation in my insulin sensitivity between day and night. And on an insulin pump my basal program varies quite a bit so nothing near as even as the profile of either Lantus or Levemir.
Best Wishes with sorting out your basal requirements !!
Click to expand...
And to clarify, at 18 + hours fasting my BSLs was not high and my endocrinologist opined that the ketones were due to starvation but could still affect my subsequent BSLs.
 
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