It means, unlike novolin, you don't change the dose based on the preshot number you get.
For example, you might have a sliding scale for novolin on the dose you give. If you get a 300 at PS, you give so many units. If you get a 200, you give a different dose.
Lantus and Levemir don't work that way. We dose primarily on the nadir or the lowest number of the cycle. Lets say Gilbert was consistently getting a nadir between 60-80 but his preshots were 350. You wouldn't change the dose based on those high PS numbers. You would wait and see if his nadirs went lower...then you would reduce. OR, if they started trending much higher, you would likely increase.
Make sense?
For example, you might have a sliding scale for novolin on the dose you give. If you get a 300 at PS, you give so many units. If you get a 200, you give a different dose.
Lantus and Levemir don't work that way. We dose primarily on the nadir or the lowest number of the cycle. Lets say Gilbert was consistently getting a nadir between 60-80 but his preshots were 350. You wouldn't change the dose based on those high PS numbers. You would wait and see if his nadirs went lower...then you would reduce. OR, if they started trending much higher, you would likely increase.
Make sense?