Ratios - mealtime

4 posts, 4 contributors

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mum2westiesGill 502 posts

My current ratios are:
2:10 - breakfast (that's 2u to every 10g carbs)
1:10 - lunchtime (1u to every 10g carbs)
1:10 - teatime

I really don't know how I came to have these ratios.

What's the best/easiest way to find your correct ratio. Is it if you are holding steady from one meal to the next?

Warwick DAFNE Graduate
Diabetes Australia-Vic, Melbourne, Victoria
423 posts

Pretty much. Compare your reading from right before the meal with a reading 3-4 hours afterwards (with no snacking in between the tests). They should be within 1.5 of each other. E.g, if you are 6.0 before lunch at 12, and somewhere between 4.5 and 7.5 at 3.30, then you could reasonably assume that your ratios were correct.

As well as not snacking, don't do any physical activity between the tests that you don't usually do - e.g. don't do this test on a day that you are helping a friend move house and carrying heavy boxes because physical activity does tend to drop BGLs.

Cheers,
Warwick.

paulj DAFNE Graduate
Northumbria Healthcare Trust
36 posts

it might be worthwhile to check how long your fast acting insulin continues to work.i.e. i am on novo rapid and as far as i know it has a effect of up to 5 hours after eating so therefore if i was doing something similar to what you were doing to get a accurate picture i wouldnt test until round about five and a half hours later after my meal/snack
cheers

paulj Very Happy

Garry DAFNE Graduate
North Lincolnshire and Goole NHS Foundation Trust
328 posts

We all talk DAFNE ratios. DAFNE uses 10 g carbohydrate as 1 carbohydrate measure and we are all used to talking in 10 g 'lumps' of carbohydrate
So your ratios under DAFNE are:
2:1 - breakfast
1:1 - lunch
1:1 - teatime
You are able to delete unwanted ratios from the drop down boxes and create new ones when using your Online Diary.
Regards
Garry